Download presentation
Presentation is loading. Please wait.
Published byDerrick Ward Modified over 9 years ago
1
Warm Up Name an example of: Obtuse, acute, straight, & adjacent ∠ ’s (Be sure to use 3 letters when naming the ∠ ) B H T A M
2
Angle Pair Relationships Supplementary Angles Complementary Angles
3
Two angles that sum to 90° are called complementary angles. Two angles that sum to 180° are called supplementary angles. 33° 57° 64°116°
4
Ex. 1
5
Ex. 2
6
Tear out pages 347 – 350
8
1)
10
Warm Up Find the measure of ∠ a 1)2)3) a a a 132° 71°
11
Angle Pair Relationships Adjacent Angles Vertical Angles Linear Pair
12
Two angles are adjacent if they share a common vertex and side. B A C Y ∠ CAY is adjacent to ∠ YAB
13
Vertical angles are formed by 2 intersecting lines. They are located opposite of each other. 1 2 3 4 1 and 3 are vertical angles 2 and 4 are vertical angles
14
Theorem: All vertical angles are congruent. 1 2 1 2
15
Two adjacent angles that form a straight line are called a linear pair. 1 and 2 are a linear pair of angles. 1 2 What measure does a linear pair always have to add up to?
16
Ex. 1
17
1) Find the measure of all missing angles. 72◦
18
2) Find the measure of all missing angles. 62° 41°
20
(3x – 12) 84 1) Find the value of x.
21
(4x + 5) xx 2) Find the value of x.
22
3) Find the value of x. (6x)
23
4) Find the value of x. (4x – 53 ) (2x + 27)
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.