Q.
OPQR is a square and M, I{ are the middle points of the sides PQ and QR, respectively, Then the ratio of the area of the square to that of triangle OMN is
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a
4:1
b
2:1
c
8:3
d
7:3
answer is C.
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Detailed Solution
Let the coordinates of vertices O, P, Q,, R be (0, 0), (a, 0), (a, a), (0, a),respectively. Then, we get the coordinates of M as (a, a/2) and those of N as (a/2, a).Therefore, Area of ΔOMN=12001aa/21a/2a1=3a28The area of the square is a2.Hence, the required ratio is 8 : 3.
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