Question

Q2) using opposite angle test for parallelogram prove that every rectangle is a parallelogram?​

Answer 1

Answer :

Let ABCD be a rectangle.

∠A = ∠B = ∠C = ∠D = 90°

For any quadrilateral to be a parallelogram, pair of opposite angles should be congruent.

In rectangle ABCD,

∠A = ∠C = 90°

∠B = ∠D = 90°

Thus, rectangle ABCD is a parallelogram.

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