1. Introduction to Geometry
Unit 1 – 3 Angles

2. Angles

3. Words to live by…ANGLES
Acute Angle
Obtuse Angle
right Angle
straight Angle

4. Words to live by…ANGLES
Complementary angles
Supplementary Angles
Vertical Angles
Linear Pair

5. Naming Angles A C B It takes three (3) points to name an angle.
On some occasions, you can use the vertex as the name.

6. C D B A E F

7. In your composition notebook….
Create a 60o angle and name it
Create a o angle and name it
Create a 15o angle And name it
Create any angle and have your partner measure it.

8. Y X Z 44 V W

9. a+12 a W V X
What is the angle relationship ______________________________
Find the value of (a) Then find the measure of both angles

10. z 4xo xo T V W Y 1. What angle relationships are presented?
2. Find the value of (x) and measure of all angles

11. 1. What is the supplement of an angle whose measure is 117o?
2. What is the Complement of an angle whose measure is 68o?
3. Can you come up with an angle that does not have a complement?

12. 1. If m T = (5x – 10)o, find the measure of the supplement and the complement.
2. an angle’s measure is 5o less than 3 times the measure of its supplement. Find the measure of the angle and its supplement