Mathematics, 12.11.2020 21:30, boyettalexandra

Britton rotated trapezoid ABCD 180° on the coordinate plane. If angle B is 20° and angle D is 90°, what is the degree measurement of angle B′? 20°
70°
90°
180°

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Britton rotated trapezoid ABCD 180° on the coordinate plane. If angle B is 20° and angle D is 90°, w...