1. Geometry 3.1 angles

2. The easiest angle ever Straight angle Made by two opposite rays BA and BC are opposite rays ABC

3. What is an angle When two rays share the same endpoint they make an angle. The rays are called the sides of the angle. The common endpoint is the vertex.

4. Angle parts Name the two rays? PR and PQ Name the Vertex? P P R Q

5. How they look in your book E D F 2

6. How we write the symbol What is this symbol Here is the symbol for an angle

7. How to name them E D F 2 Use the vertex and a point from each side. –The vertex is always in the middle DEF or FED

8. How to name them E D F 2 Or you can just use the vertex E

9. How to name them E D F 2 Or you can just use the number 2

10. What does the Homework look like X Z Y 3 Name the angle in four ways. Then identify its vertex and sides. XYZ ZYXY3 YYXYZ

11. Another question X Z w 1 Name all the angles having W as their vertex. 2 Y

12. Now the really hard stuff Tell whether the point is in the interior, exterior, or on the angle.

13. 3.1 4-24