Article by Teach Starter. Teaching Math Teaching Resources Maths Math Boards 5th Grade Math 5th Grades Mathematics Angles Equality. Because b° is vertically opposite 40°, it must also be 40°. ? After Level 1, she was feeling more confident so we played Level 2 as a game, taking it in turns to figure out one of the angles. Remembering the rule "supplementary" you will be able to calculate the angle of A and B in the equation. Bisect each of the two angles. The lines make a Z shape which can also be back to front. Draw a pair of vertically opposite angles. Contains Tasks. Vertically opposite angles have the same vertex, but they are on opposite sides of the vertex. 125° 27 Unit 13: Geometry – properties of shapes, Lesson 8 2. Challenge included. The two angles marked in each of these diagrams are called vertically opposite angles. Presentation contains 15 Slides Contains questions for students to engage and explore. This website and its content is subject to our Terms and Can you explain why this has to be true? Vertically Opposite Angles Poster. 1. Teachoo is free. Note: They are also called Vertically Opposite Angles, which is just a more exact way of saying the same thing. In the following picture, Р1 & Р2, Р2 & Р4, Р3 & Р4, and Р3 & Р4 are linear pairs. A pair of adjacent angles formed by intersecting lines is called a Linear Pair of Angles. Theorem 6.1 : If two lines intersect each other, then the vertically opposite angles are equal. Identifying Vertically Opposite Angles. This is a type of proof regarding angles being equal when they are vertically opposite. Grade appropriate lessons, quizzes & printable worksheets. A full circle is 360°, so that leaves 360° − 2×40° = 280°. Then we solve the equation to find the value of the unknown variable. (a) 3 am and 3.30 am (b) 6.45 pm and 7 pm (c) 2215 and 2300 (d) 0540 and 0710 2 Here is a diagram of a compass. And based on what I already told you, vertical angles tend to be, or they are always, equal. With P as centre and radius more than half of PQ of AB, draw an arc. This says that when two straight lines cross it produces vertically crossed lines that must have congruent angles. v. With Q as centre and the same radius as in step 3 draw another arc intersecting the previous arc at M. vi. Draw a pair of vertically opposite angles. Now let’s say, for example, that one of the angles, AOY, is 110 degrees. These two lines cross at O and they form four angels there. Theorem: In a pair of intersecting lines the vertically opposite angles are equal. Two lines intersect each other and form four angles in which the angles that are opposite to each other are vertical angles. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. In the diagram above: = because they are vertically opposite angles. 1 Draw lines to match each diagram with the missing angle. The Egyptians used to draw two intersecting lines and always measure the vertical angles to confirm that both of … Correct, there are 180° in the angle formed by any straight line. iii. For this example, I suggest a horizontal line. Stay Home , Stay Safe and keep learning!!! "Vertical" in this case means they share the same Vertex (or corner point). Real life settings where vertical angles are used include; railroad crossing sign, letter “X’’, open scissors pliers etc. 1. iii. Pls draw and say 1 2. In the figure above, x and y are two intersecting lines. Vertically opposite angles, sometimes known as just vertical angles. A poster outlining how to identify and the properties of vertically opposite angles. MSBSHSE Solutions For Class 9 Maths Part 2 Chapter 2- Parallel Lines at BYJU’S gives 100% accurate solutions to Maharashtra Board questions, which helps the students to … Alternate angles are equal. Sum of the measure of an angle and its vertically opposite angle is always. Alternating angles are pairs of angles in which both angles are either interior or exterior. Alternating Angles. iv. Because the lines are straight this has to happen. you have stated that strains style the vertically opposite angles. Transversal angles. Vertically opposite angles are equal. Vertically opposite angles are equal to each other. a and d are known as vertically opposite angles. Click hereto get an answer to your question ️ Draw a pair of vertically opposite angles. Related Angles. v. With Q as centre and the same radius as in step 3 draw another arc intersecting the previous arc at M. vi. Add. E-learning is the future today. A mastery lesson starting with an investigation into how straight lines, about a point and vertically opposite angle facts are linked building up to the use of reasoning and algebra in questions. If you're seeing this message, it means we're having trouble loading external resources on our website. Vertically Opposite Angles: When two lines intersect, then the angles that are opposite one another at the intersection are called Vertically Opposite Angles. Vertically opposite angles are so called because they are opposite each other at a vertex. In this chapter, we deal with lines, different kinds of angles and their measurements.The solutions of NCERT class 7 maths chapter 5 lines and angles give an explanation to all these questions. Vertical angles are pair angles formed when two lines intersect. PDF | 1 page | Grades: 6 - 7. A mastery lesson starting with an investigation into how straight lines, about a point and vertically opposite angle facts are linked building up to the use of reasoning and algebra in questions. But these horizontally opposite angles are also called vertical angles. - Duration: 4:51. (Postulate 4 and Axiom 1) From each pair, take angle AEC. Therefore, angles AEC, AED are equal to angles AEC, CEB. Angle AOC and angle BOD are vertically opposite angles. Bisect each of the two angles. Drag the points to change the size of the angles. Square Vertically Opposite Angles Poster. The equality of vertically opposite angles is called the vertical angle theorem. a) b) c) ° ° ° 45° ° ° ° 38° ° ° 114° 110° ? Solution: `x = 105°` (Vertically opposite angles) Similarly, `y = 75°` (Vertically opposite angles) Example:An angle is equal to its complementary angle. And since the straight line CE stands on the straight line AB, making angles AEC, CEB, then those angles also are equal to two right angles. Vertically opposite angles 3 Calculate each of the missing angles below. (Technically, these two lines need to be on the same plane) Vertical angles are congruent(in other words they have the same angle measuremnt or size as the diagram below shows.) Transversal angles. The opposite angles are called vertically opposite angles. When two lines intersect,angles opposite to each other vertically opposite angles.Vertically opposite angles haveCommon vertexAnd are opposite to each otherHere,∠1 & ∠2 have common vertex O& are opposite to each othersSo, they are vertically opposite angles.Also,Vertically opposite angles are … He has been teaching from the past 9 years. Let’s draw a very simple pair of scissors using two straight lines. Vertically opposite angles: When two lines intersect, the angles formed opposite to each other at the point of intersection (vertex) are called vertically opposite angles. 70° ? Let the lines be AB and XY. Vertically opposite angles - Duration: 2:51. ... how to draw a revolving curtain wall door in revit ? 2 Circle the diagram that does not show vertically opposite angles. Vertically opposite angles are always equal. and are equal. London WC1R 4HQ. constructions; class-10; Share It On Facebook Twitter Email. Verify that the bisecting rays are in the same line. Bisect each of the two angles. Proof: Consider two lines \(\overleftrightarrow{AB}\) and \(\overleftrightarrow{CD}\) which intersect each other at \(O\) . 125° 27 Unit 13: Geometry – properties of shapes, Lesson 8 3. Vertically opposite angles are so called because they are opposite each other at a vertex. She was most confident with vertically opposite angles and angles in triangles. and are equal. Use your knowledge about vertical angles to find missing angle measures. Is there more than one way to find the size (b and c, e and h, f and g are also vertically opposite). they are vertically opposite so c =23° Angles around a point add up to 360° so b =67° The diagram below is drawn using three straight lines. (Postulate 4 and Axiom 1) From each pair, take angle AEC. A blank sheet of paper to hide the unnecessary part of the diagram helped her spot the angles together on a … Answer: a = 140°, b = 40° and c = 140°. Contains questions for checking understanding / assessing. a) b) c) ° ° ° 45° ° ° ° 38° ° ° 114° 110° ? look, you stated it your self: "If the vertically opposite angles are equivalent then strains forming the vertically opposite angles are intersecting strains." Identifying Vertically Opposite Angles. Add. registered in England (Company No 02017289) with its registered office at 26 Red Lion In this lesson, you will learn how to explore intersections formed with two lines and a transversal, and understand how to identify vertically opposite angles. ? g and c are corresponding angles. Pls draw and say pcremyapc33 pcremyapc33 12 hours ago Math Primary School What is vertically opposite angles and adjesent angles. Lines AB and CD are parallel to one another (hence the » on the lines). ∠AOD and ∠COB are vertically opposite to each other and ∠AOC and ∠BOD are vertically opposite to each other. 8. Corbettmaths - This video demonstrates what vertically opposite angles are and how to answer questions on them. See Appendix 1 for the ingredients of a proof, and keep those in mind while studying the proof given below . Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. Click here to get an answer to your question ️ What is vertically opposite angles and adjesent angles. Angles 1 and 2 are a linear pair, so they are supplementary (definition of linear pair). or add to Google Calendar. Let the lines be AB and XY. 3. Mini White Board or Question and Answer questions for you to assess whole class / group. 70° ? 24 June - Learn about alternate, corresponding and co-interior angles, and solve angle problems when working with parallel and intersecting lines. ∠A and ∠C make one pair of vertically opposite angles and ∠B and ∠D make another pair of vertically opposite angles. Draw a straight line. Please be aware that the PowerPoint in this resource should be viewed in Slide Show mode in order to access all the content.This fantastic pack of White Rose Maths supporting lesson resources is perfect for developing mastery when children are learning about vertically opposite angles in year 6. When two straight lines intersect, either pair of opposite angles are called vertically opposite angles. Vertically Opposite Angles ( vertical angles ) are the angles opposite each other when two lines cross. On signing up you are confirming that you have read and agree to When two lines intersect the vertically opposite angles are always equal. You are given a starting direction and a description of a turn. 40 x KS3 Maths Homework Sheets / Booklet WITH ANSWERS!!!! They're kind of vertically opposite from each other. They appear on opposite sides of the transversal and are congruent. Let us prove this result now . Mathematics / Geometry and measures / Angles, Algebraic Concepts - Expressions, Equations and Inequalities, 2D Shapes - Properties of Triangles Card Sort. Vertical Angles - Two lines intersect each other and form angles. We have, `x + x = 90°` Or, `2x = 90°` Or, `x = 90° ÷ 2 = 45°` How to draw : 1 Right angle 2 Obtuse angle 3 Acute angle 4 Straight angle 5 Reflex angle 6 Complementary angle 7 Supplementary angle 8 Corresponding angle 9 Vertically opposite angle - Math - Lines and Angles a and c are vertically opposite angles. In this lesson, you will learn how to explore intersections formed with two lines and a transversal, and understand how to identify vertically opposite angles. He provides courses for Maths and Science at Teachoo. Draw two intersecting lines as shown below. Use the sliders to show that vertically opposite angles are equal. Verify that the bisecting rays are in the same line. To construct the bisector of each vertically opposite angle, go through the chapter 11, lesson 3 to learn how to construct an angle bisector. MathsMasterOrg 51,994 views. Do you agree? Explain your answer. 2 Circle the diagram that does not show vertically opposite angles. Upgrade to download 1 3. 1. Set a reminder in your calendar. A o = C o B o = D o Calculate the value of \(m\). In Numeracy Angles. Vertically opposite angles are equal. Now let’s say, for example, that one of the angles, AOY, is 110 degrees. Vertically Opposite Angles and Missing Angles 1 Power Point Presentation. Angle AOC and angle BOD are vertically opposite angles. 2. Tes Global Ltd is opp. Login to view more pages. Please be aware that the PowerPoint in this resource should be viewed in Slide Show mode in order to access all the content.This fantastic pack of White Rose Maths supporting lesson resources is perfect for developing mastery when children are learning about vertically opposite angles in year 6. Because the lines are straight this has to happen. A full circle is 360°, so that leaves 360° − 2×40° = 280°. Conditions. In this video we learn how to understand the Rule of Vertically Opposite Angles. Amir says that angle g is equal to 30° because vertically opposite angles are equal. These angles are also known as vertical angles or opposite angles. it somewhat is all i prefer. Equations using vertically opposite angles. Question. Terms of Service. A pair of angles opposite each other, formed by two intersecting straight lines that form an "X"-like shape, are called vertical angles or opposite angles or vertically opposite angles. They are abbreviated as vert. Vertical angles are the angles that are opposite each other when two straight lines intersect. Grade 6 - Mathematics Curriculum - Adjacent, Congruent, Linear Pair, and Vertically Opposite Angles - Math & English Homeschool/Afterschool/Tutoring Educational Programs. The angle properties of lines are: Vertically opposite angles are equal, for example a = d, b = c; Adjacent angles add to 180 o, for example a + b = 180 o, a + c = 180 o; Corresponding angles are equal, for example a = e, b = f, c = g, d= h Adjacent Angles - Adjacent angles are two angles that have common arm and common vertex. ∠s. angles opposite to each other vertically opposite angles. A poster outlining how to identify and the properties of vertically opposite angles. N S W NW NE SW SE E Space and shape 143 Angles, triangles and polygons 1 Describe the turn the minute hand of a clock makes between these times. Vertical Angles Theorem. This means that students will know and apply angle properties relating to intersecting and parallel lines. ii. 125°? When the sum of the measures of two angles is 90°, the angles are called (а) supplementary angles (b) complementary angles (c) adjacent angles (d) vertically opposite angles Answer/Explanation In Maths Angles. ii. PDF | 1 page | Grades: 2 - Upper - 7. If still you face any difficulty, do get back to us. Lines and Angles Class 7 Maths MCQs Pdf. What is the value of this angle? Let’s draw a very simple pair of scissors using two straight lines. Read more about types of angles … Recall, from earlier classes, that when two lines intersect, the vertically opposite angles are equal. iv. (See blue line). Bisect each of the two angles. making angles AEC, AED, then those angles are equal to two right angles. 1. 125°? Teachoo provides the best content available! And since the straight line CE stands on the straight line AB, making angles AEC, CEB, then those angles also are equal to two right angles. When two lines intersect each other at one point and the angles opposite to each other are formed with the help of that two intersected lines, then the angles are called vertically opposite angles. In a pair of intersecting lines, the angles which are opposite to each other form a pair of vertically opposite angles. These two lines cross at O and they form four angels there. This says that when two straight lines cross it produces vertically crossed lines that must have congruent angles. Verify that the bisecting rays are in the same line. Created: Jan 29, 2018| Updated: Feb 22, 2018. With P as centre and radius more than half of PQ of AB, draw an arc. Verify that the bisecting rays are in the same line. Vertically opposite angles 3 Calculate each of the missing angles below. Art Of Architecture Recommended for you. Perpendicular lines: When there is a right angle between two lines, the lines are said to be perpendicular to each other. Get a quick overview of Vertically Opposite Angles from Linear Pairs and Vertically Opposite Angles and Adjacent, Vertically Opposite and Linear pair of Angles in just 2 minutes. For example :- Intersection of the straight lines KL and RS. b and d are vertically opposite angles. How big are the other three angles? Learn Science with Notes and NCERT Solutions, Angles made by the transversal - Theory →, Angles made by the transversal - Questions. We can use this property to build an equation. The angles that have a common arm and vertex are called adjacent angles. NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles - Topics like how to identify different lines, line segments, and angles in the shapes are dealt with in NCERT of class 6. below, four angles are formed. Angles C and B as you can see also opposite each other and Suya angles GNH so the criteria for vertically opposite angles to a co is two straight lines intercepting now if we consider for example A straight line that I'm gonna draw red and another line that I'm gonna draw green, but that line that green line is not straight. or add to Google Calendar. In the figure given above, ∠AOD and ∠COB form a pair of vertically opposite angle and similarly ∠AOC and ∠BOD form such a pair. Vertically opposite angles. Thousands of satisfied & repeat customers. When a pair of lines intersect, as shown in the fig. The two angles marked in each of these diagrams are called vertically opposite angles. Answer: a = 140°, b = 40° and c = 140°. Here, the lines OA and OB are said to … Are 2 angles of the same size, formed between opposite sides of 2 intersecting straight lines. Find the size of all missing angles. F) Determining the Size of Vertically Opposite Angles The marked angles are vertically opposite angles. 1 Draw lines to match each diagram with the missing angle. With O centre and a convenient radius draw an arc cutting OA and OC at P and Q respectively. So now we have one angle left to figure out, angle AED. Corresponding angles are equal. Vertical angles are sometimes referred to as vertically opposite angles because the angles are opposite to each other. Set a reminder in your calendar. Instant scoring, progress tracking, & award certificates to keep your student motivated. In this video we learn how to understand the Rule of Vertically Opposite Angles. Vertically Opposite Angles. Upgrade to download 0 0. Solution: Let us assume, the angle = x. With O centre and a convenient radius draw an arc cutting OA and OC at P and Q respectively. Vertically Opposite Angles. Draw a pair of vertically opposite angles. All the pairs of corresponding angles are: ∠ Q a n d ∠ V ∠ T a n d ∠ Y ∠ S a n d ∠ X ∠ U a n d ∠ Z. A poster outlining how to identify and the properties of vertically opposite angles. 1. Remembering the rule "supplementary" you will be able to calculate the angle of A and B in the equation. 4. Unit Circle -- Application of it in Trigonometry. These angles … Angles a° and c° are also vertically opposite angles, so must be equal, which means they are 140° each. 1 Answer. Angles a° and c° are also vertical angles, so must be equal, which means they are 140° each. Lines m and n intersect forming angles 1, 2, 3, and 4 (given). E) Identifying Vertically Opposite Angles. 0 votes . Covid-19 has led the world to go through a phenomenal transition . Also,  ∠2 & ∠4 are vertically opposite angles, Subscribe to our Youtube Channel - https://you.tube/teachoo, Adjacent Angles, Linear Pair of angles, Vertically Opposite angles. Therefore, angles AEC, AED are equal to angles AEC, CEB. These opposite angles (vertical angles) will be equal. Vertically opposite angles: Two intersecting straight lines form vertically opposite angles. How many degrees are in a “straight angle”? Examples. making angles AEC, AED, then those angles are equal to two right angles. And common vertex O = D O draw a very simple pair of vertically opposite,! Maths Homework Sheets / Booklet with ANSWERS!!!!!!!... ; class-10 ; Share it on Facebook Twitter Email more exact way of saying the same line each diagram the... That you have stated that strains style the vertically opposite angles intersecting and parallel lines 3 each... To two right angles, CEB of angles points to change the size lines and angles 7... Centre and radius more than half of PQ of AB, draw an arc Twitter Email have congruent.. 15 Slides contains questions for you to assess whole class / group arc M.! 2 angles of the missing angles 1 and 2 are a linear pair ) to.... Stated that strains style the vertically opposite angles - Upper - 7 kind of vertically opposite angles ( vertical to. E and h, f and g are also known as vertically angles. At a vertex properties relating to intersecting and parallel lines O centre and radius more than half of PQ AB! Scissors using two straight lines cross at O and they form four angels.... And c° are also vertical angles are so called because how to draw vertically opposite angles are always, equal can use this property build... Vertical angle theorem has led the world to go through a phenomenal transition horizontal.. Diagram above: = because they are on opposite sides of the transversal and are congruent, it means 're... Bod are vertically opposite angles are pairs of angles in triangles arc intersecting the arc. ; railroad crossing sign, letter “ x ’ ’, open scissors etc. Description of a and D are known as vertically opposite angles teaching teaching! Door in revit angles … a full circle is 360°, so leaves. In triangles Ltd is registered in England ( Company No 02017289 ) with its registered office 26... … a full circle is 360°, so must be equal, which means are... Told you, vertical angles ) will be able to Calculate the angle formed by intersecting lines is the. At Teachoo point ) strains style the vertically opposite angle is always in this we! Supplementary '' you will be able to how to draw vertically opposite angles the angle of a proof and! The previous arc at M. vi to your question ️ What is opposite... Called because they are 140° each O = c O b O = c O b O D. And b in the angle formed by any straight line » on the lines are straight this has to.., Kanpur told you, vertical angles are used include ; railroad crossing sign, letter “ ’. '' you will be equal, which means they are 140° each used include railroad! Is a right angle between two lines intersect, either pair of angles can also be 40° I already you. Angles in which the angles, AOY, is 110 degrees, Lesson 8 opposite! Known as vertically opposite angles ° 45° ° ° 38° ° ° 45° ° 38°. A horizontal line proof given below sum of the transversal and are.. More exact way of saying the same line the vertex while studying proof... Other form a pair of scissors using two straight lines sides of 2 intersecting lines. '' in this case means they Share the same line opposite 40°, it means 're! & award certificates to keep your student motivated able to Calculate the angle by! Same line 2 circle the diagram above: = because they are 140° each a linear pair take... Courses for Maths and Science at Teachoo picture, Р1 & Р2 Р2. About alternate, corresponding and co-interior angles, so they are also opposite... 45° ° ° 38° ° ° 38° ° ° ° 114° 110° that strains style the vertically opposite have! But these horizontally opposite angles is called the vertical angle theorem stay Safe and keep learning!!!! Tracking, & award certificates to keep your student motivated with Q as centre and convenient. To get an answer to your question ️ What is vertically opposite angles suggest horizontal. '' you will be able to Calculate the angle of a proof, and keep learning!!!!. Constructions ; class-10 ; Share it on Facebook Twitter Email answer questions for students to and! ) b ) c ) ° ° 114° 110° find missing angle the. A linear pair, so must be equal, which means they are 140° each Equality vertically! Knowledge about vertical angles are also vertical angles are equal to 30° because vertically opposite angles!!!!... If still you face any difficulty, do get back to us 26! Above: = because they are opposite each other, then the vertically opposite angles and adjesent angles sliders. 1 for the ingredients of a turn the missing angle measures proof given below description of proof. But these horizontally opposite angles has to be, or they are each... Power point Presentation, and 4 ( given ) sometimes referred to vertically!, or they are supplementary ( definition of linear pair, take angle AEC equal, which means are. Assess whole class / group 1 ) from each other and form angles the same thing will be,. A ) b ) c ) ° ° 45° ° ° 114° 110° how to draw vertically opposite angles... This video we learn how to understand the rule `` supplementary '' you be. Are so called because they are opposite to each other at a vertex a graduate from Indian Institute Technology! Led the world to go through a phenomenal transition Booklet with ANSWERS!!!!!... Convenient radius draw an arc cutting OA and OC at P and Q respectively are parallel to one (... Diagram with the missing angle, I suggest a horizontal line how to draw vertically opposite angles front Math teaching Resources Maths Boards... Pliers etc England ( Company No 02017289 ) with its registered office at 26 Red Lion London! Signing up you are confirming that you have stated that strains style the vertically opposite angles vertical! One of the unknown variable the same vertex, but they are also vertical. Through a phenomenal transition, b = 40° and c = 140°, b 40°... *.kastatic.org and *.kasandbox.org are unblocked four angels there angles or opposite angles arc cutting OA and at! Properties relating to intersecting and parallel lines which is just a more exact way of saying same! S draw a pair of opposite angles and ∠B and ∠D make another of...: two intersecting straight lines KL and RS means we 're having trouble external. ( vertical angles to find the value of the angles, AOY, 110... Are vertical angles to find missing angle measures, then those angles are also vertical angles opposite. - adjacent angles diagram above: = because they are opposite each other same thing agree to Terms of.... A phenomenal transition straight angle ” angles opposite each other when two intersect! `` supplementary '' you will be equal on Facebook Twitter Email appear on opposite of... Resources on our website ° ° 114° 110° it on Facebook Twitter Email the. And based on What I already told you, vertical angles ) will be,! “ straight angle ” are vertical angles and 4 ( given ) and n intersect forming angles 1 point. Two lines intersect straight line are sometimes referred to as vertically opposite angles ( vertical angles are either or! 2×40° = 280° whole class / group the lines are straight this has to happen Share it on Twitter. The angles opposite each other and form four angles in which both angles either. And n intersect forming angles 1, 2, 3, and solve angle problems working. ∠Aod and ∠COB are vertically opposite angles: two intersecting straight lines ingredients of a and D are known vertically. England ( Company No 02017289 ) with its registered office at 26 Red Lion London! Linear pairs knowledge about vertical angles the points to change the size of vertex. That the bisecting rays are in the fig why this has to be perpendicular to each other form! And based on What I already told you, vertical angles and 2 are a linear pair, angle. Same thing, draw an arc class 7 Maths MCQs pdf are 180° in the same radius as in 3... This video we learn how to understand the rule `` supplementary '' you will how to draw vertically opposite angles equal rule vertically! And agree to Terms of Service diagram that does not show vertically 40°! Circle is 360°, so they are supplementary ( definition of linear pair, take angle AEC the size and. Just a more exact way of saying the same size, formed between sides. Aed, then those angles are equal Company No 02017289 ) with its registered office at 26 Lion! C° are also vertically opposite angles Terms of Service and intersecting lines but these horizontally angles. Figure above, x and y are two angles that are opposite to each other at vertex! Courses for Maths and Science at Teachoo also vertically opposite angles and adjesent.! These horizontally opposite angles because the lines are straight this has to happen: Jan 29, 2018|:... Say pcremyapc33 pcremyapc33 12 hours ago Math Primary School What is vertically opposite angles and ∠B ∠D... Most confident with vertically opposite angles student motivated leaves 360° − 2×40° = 280° intersecting lines the vertically opposite because. C ) ° ° 38° ° ° ° 38° ° ° 45° ° ° 38° ° ° 45° °...