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Angle ACD is an exterior angle of equilateral Triangle ABC. Find Angle ACD. With Method plz​

Answer»

it's SIMPLE = EXTERIOR angle of triangle ABC ( X ) + angle ACD = 180° = X + 60° ( all the angles of equilateral triangle is 60°) = 180° = X = 180° - 60° = X = 120° hence , the exterior angle ACD MEASURE 120°


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