1. Determine which of the labeled angles are exterior angles.
2.
a. Which of the numbered angles in the figure are exterior angles?
b. Which of the numbered angles in the figure are congruent? List all that apply.
3.
a. What are the two remote interior angles for ∠4?
b. Which of the labeled angles are supplementary? List all that apply.
4. For the figure shown, find m∠1.
5. Given that m∠4 = 68°, m∠1 = (5x − 8)°, and m∠2 = (6x − 12)°, find m∠1 and m∠2.
6.
a. Writing For the figure shown, find m∠1.
b. Explain two ways to find the missing angle measure of the triangle.
7.
a. Reasoning For the figure shown, find m∠1.
b. Can you find the measure of ∠1 without using an exterior angle and the other remote interior angle? Explain.