NDA 2018 Mathematics question
Coordinates of the points O, P, Q and R are respectively , , and . Let L, M, N and K be points on the sides OR, OP, PQ and QR respectively such that LMNK is a parallelogram whose two adjacent sides LK and LM are each of length . What are the values of m and n respectively?
Answer: (C)
Solution
The mid-points of the sides of the quadrilateral OPQR form a parallelogram. Mid-points: of OR, of OP, of PQ, of QR.
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