Q. 115.0( 4 Votes )

In a parallelogram ABCD, D= 135°, determine the measure of A andB.

Answer :

Let one of the adjacent angle D = 135°


Therfore other adjacent angle A = x°


Sum of adjacent angles = 180°




A =



A = C =45° and D = B =135° [Measure of opposite angles of a parallelogram are equal]


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