Question

Determine the measure of each exterior angle.

Answer 1

A = 75*
C = A - 50* = 25*
B = 180* - (A+C) = 80*

Answer 2

A = 180 - 75 = 105
C = 180 - (A - 50)
C = 180 - (105 -50)
C = 180 -  55
C = 125

B =180 - (75+ 55)
B =180 - 130
B = 50