P, Q, R and S are respectively the mid-points of sides AB, BC, CD and DA of quadrilateral ABCD in
Channel: Doubtnut
Date: 2020-01-19

P, Q, R and S are respectively the mid-points of sides AB, BC, CD and DA of quadrilateral ABCD in which AC=BD and `ACbotBD`. Prove that PQRS is a square.