Question

First identify the angle RELATIONSHIP, then find the measure of the angle indicated in bold.

Answer 1

Alternate exterior angles

m∠ ≈ 120°

Explanation:

Step 1: Set up equation

41x - 3 = 40x

Step 2: Isolate x and solve

x - 3 = 0

x = 3

40(3) = 120

Answer 2

These angles are alternate exterior angles. Since they are congruent, to find the value of x we can write:

41x - 3 = 40x

x = 3 which means 40x = 40 * 3 = 120°.