1. 11-4 Exterior Angles of Triangles
10/4/17

2. Essential Question: What is the relationship between the exterior and interior angles of a triangle?

3. Vocabulary
If you were to extend one side of a triangle, an exterior angle of a triangle is formed.
In each picture, Angle 1 is an exterior angle of each triangle.

4. Vocabulary
For each exterior angle of a triangle, the two interior angles on the opposite side are its remote interior angles.

5. Vocabulary
The measure of an exterior angle of a triangle equals the sum of the measures of its two remote interior angles.

6. Example 1 (spiral/handout)

7. Student Companion p. 270 Part 1 Got it

8. Example 2 (spiral/handout)

9. Student Companion p. 270 Part 2 Got it

10. Example 3 (spiral/handout)

11. Student Companion p. 271 Part 3 Got it

12. Student Companion p. 272 Focus Question #1-4 and #6
Homework
Student Companion p. 272 Focus Question #1-4 and #6