21. P, Q, R, S are respectively the midpoints of thesides AB, BC, CD a – InterviewSolution

1.	21. P, Q, R, S are respectively the midpoints of thesides AB, BC, CD and DA of llgm ABCD. Show Sthat PQRSis a parallelogram and also show thatardgm PQRS) =-x ardgm ABCD).APB
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