In trapezoid ABCD base AD and BC angle A 40, and angle C 110. Find the remaining angles of the trapezoid.

univerkov | September 3, 2021 | education

By the property of a trapezoid, the sum of the angles of the trapezoid adjacent to the lateral sides of the trapezoid is 180.

Then the angle ABC = 180 – BAD = 180 – 40 = 140.

Angle АDC = 180 – ВСD = 180 – 110 = 70.

Answer: Angle ABC = 140, angle ADC = 70.

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