ABCD-trapezoid with bases AD and BC. Find angles A and C of a trapezoid, if angle B = 100 degrees, angle D = 60 degrees.

univerkov | August 12, 2021 | education

For a trapezoid, the sum of the angles on the side is 180.

Then the angle BAD = 180 – 100 = 80.

Angle ВСD = 180 – 60 = 120.

Answer: Angle A = 80, Angle C = 120.

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