1. Warm Up
Solve.

2. Lesson 3.1 Symbols Naming an Angle & Segment Vertical Angles
Linear Pair
Complementary Angles
Supplementary Angles
Angle Bisectors

3. Symbols to Know

4. Name this angle 4 different ways. T C 2 A

5. Name the ways can you name 3?
Name the ways can you name MHT?  M A T H 3 4

6. Name the angle 4 ways.

7. How do you name the red side?

8. Linear Pair
Two angles that are side-by-side, share a common vertex, share a common ray, & create a straight line.
62 x
Solve for x.
Equation:
____ + ____ = 180

9. Solve for x. x
x + 104

10. Two angles that add up to 180.
Supplementary Angles
Two angles that add up to 180.
Equation:
____ + ____ = 180
82 x
Solve for x if the following 2 angles are supplementary.

11. Solve for x.

12. 13 and 14 are supplementary angles
m13 = 47. Find m14.

13. One of two supplementary angles is 46 degrees more than its supplement
One of two supplementary angles is 46 degrees more than its supplement. Find the measure of both angles.
1st Angle:
2nd Angle:

14. Two angles that add up to 90.
Complementary Angles
Two angles that add up to 90.
Equation:
____ + ____ = 90
76 x
Solve for x if the following 2 angles are complementary.

15. Solve for x.
2x + 23
x + 13

16. One of two complementary angles is 16 degrees less than its complement
One of two complementary angles is 16 degrees less than its complement. Find the measure of both angles.
1st Angle:
2nd Angle:

17. Vertical Angles
Two angles that share a common vertex and their sides form two pairs of opposite rays.
Equation:
______ = ______
76 x
Solve for x.

18. Solve for x.
40°

19. Solve for x.
(3x + 23)°
(4x + 18)°

20. Cuts an angle in to TWO congruent angles
Angle Bisector
Cuts an angle in to TWO congruent angles
Solve for x.
2x + 40
5x + 16

21. Textbook
p. 20 #41 – 43
p. 63 #20 – 22, 30
p. 72 #15 & 16