Question

Two angels of a triangle measure 65 and 75. Which is not the measure of an exterior angle of the triangle

Answer 1

An exterior angle is the sum of the two other interior angles 

the three interior angles are 55 and 65 and 180-(55+65)=60 

so 60 + 55 = 115 
60 + 65 = 125 
65 + 55 = 120 

brainlest answer.