Question 480850
x
x+15

average = (x+x+15)/2= (2x+15)/2

(2x+15)/2+x+(2x+15)/2+(x+15)=180

(4x+30)/2 +2x+15=180

((4x+30)+4x)/2=180-15

((4x+30)+4x)/2=165

((4x+30)+4x)=330
8x+30=330
8x=300
x=37.5 

37.5deg & 52.5 deg are the angles
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