ABCD-trapezoid DC and AD base, angle A is 36 degrees, angle C is 177 degrees find angles B, D.
| June 1, 2021 | education
By the property of a trapezoid, the sum of the angles at the side of the trapezoid is 180.
BAD + ABC = 180.
36 + ABC = 180.
Angle ABC = 180 – 36 = 144.
BAC + ADC = 180.
177 + ADC = 180.
ADC = 180 – 177 = 3.
Answer: Angle ABC is 144, angle ADC is 3.
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