Q12 of 58 Page 18

ABCD is a parallelogram in which ∠A = 70°. Compute ∠B, ∠C and ∠D.


Let one of the adjacent angle ∠A = 70°


Therfore other adjacent angle ∠B = x°


Sum of adjacent angles = 180°




∠B =


∠A = ∠C = 70° and ∠D = ∠B =110° [Measure of opposite angles of a parallelogram are equal]


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