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The following is a special trapezoid. Given AB is parallel to DC and m∠A = 110° Find the measure of ∠D.

Respuesta :

The interior measure should add up to 360 degrees. Given that AB and DC are parallel, that makes angles A and C equal. If A is 110 degrees, double that and you get 220. 360-220=140. Divide 140 by 2 and you get 70 degrees. This is the measurement of both angles B and D. So 70 degrees is your answer!

Answer: 70 degrees

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