SOLUTION: In ABC the exterior angle adjacent to angleC measures 120 degrees. If the measure angel A-2x and the measure of B equals x+15. Find measure of angles ABC
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Question 874847: In ABC the exterior angle adjacent to angleC measures 120 degrees. If the measure angel A-2x and the measure of B equals x+15. Find measure of angles ABC Answer by harpazo(655) (Show Source):
You can put this solution on YOUR website! Exterior angle = the sum of angles A and B.
120 = 2x + x+15
120 = 3x + 15
120-15 = 3x
105 = 3x
105/3 = 35
Angle A = 2(35)
Angle A = 70°
Angle B = 35 + 15
Angle B = 50°
