Question

The exterior angles of a triangle measure x + 3, 2x + 1, and 3x - 4. Find the measure of each exterior angle.

A)  18°, 31°, and 41°



B)  23°, 41°, and 56°
C)  33°, 61°, and 86°

D)  63°, 121°, and 176°

Answer 1

x + 3 + 2x + 1 + 3x - 4 = 360

6x = 360

x = 60

60 + 3 = 63°

2(60) + 1 = 121°

3(60) - 4 = 176°

The correct answer is D.