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OpenStudy (anonymous):
In trapezoid ABCD, find m∠A if m∠B= 25°, m∠C = 155° and m∠ D= 117°. A) 25° B) 63° C) 73° D) 92°
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OpenStudy (anonymous):
all angle must equal 360* so you add it all up and subtract from 360
OpenStudy (anonymous):
so...|dw:1334970498012:dw| then |dw:1334970560287:dw| B is correct
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