Question

Enter your answer and show all the steps that you use to solve this problem.

Write a list of steps that are needed to find the measure of ∠B.

Answer 1

9514 1404 393

Answer:

∠B = 41°

Explanation:

Step 1: Recognize that ∠B and ∠A are "remote interior angles" with respect to the exterior angle at C. Hence their sum will be equal to the measure of the exterior angle.

Step 2. Compute angle B as the difference between the exterior angle at C and the interior angle at A:

113° - 72° = ∠B = 41°