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The vertices of the triangle PQR are P(...

The vertices of the triangle PQR are P(0, b), Q(0, 0) and R(a, 0). If the medians PM and QN of PQR are perpendicular, then

A

`b^(2)=2a^(2)`

B

`b^(2)=a^(2)`

C

`a^(2)=2b^(2)`

D

a = b

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The correct Answer is:
C
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