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The figure ABCD is a quadrilateral; P,Q,R,S are the midpoints of the sides AB, BC, CD and DA respectively. Prove that the quadrilateral PQRS is a parrallelogram.

- Thread starter serenaday
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The figure ABCD is a quadrilateral; P,Q,R,S are the midpoints of the sides AB, BC, CD and DA respectively. Prove that the quadrilateral PQRS is a parrallelogram.

- #2

chiro

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I'm guessing you could use the pythagorean theorem to show that corresponding sides are equal thus parallel.

The figure ABCD is a quadrilateral; P,Q,R,S are the midpoints of the sides AB, BC, CD and DA respectively. Prove that the quadrilateral PQRS is a parrallelogram.

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