8) In a triangle ABC, LA 120Â° and2B = 22C. Find <B and <C. – InterviewSolution

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8) In a triangle ABC, LA 120Â° and2B = 22C. Find <B and <C.

Answer»

In triangle sum of all angles is 180°

Given angle A = 120Let angle C = xThen angle B = 2x

Using triangle angle sum propertyx + 2x + 120 = 1803x = 180 - 120x = 60/3 = 20

Therefore,Angle B = 2x = 2*2*= 40°Angle C = x = 20°

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