is the measure of one of the interior angles of quadrilateral abcd equal to 60 degrees? (1) two of the interior angles of abcd are right angles. (2) the degree measure of angle abc is twice the degree measure of angle bcd.
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yeah
Two angles r 90 degree
Third is 60 degree
and the fourth one is twice the third 120 degree
Two angles r 90 degree
Third is 60 degree
and the fourth one is twice the third 120 degree
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