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If a vertex of a triangle is (1, 1) and ...

If a vertex of a triangle is (1, 1) and the mid-points of two side through this vertex are (-1, 2) and (3, 2), then centroid of the triangle is

A

(1, 7/3)

B

(1/3, 7/3)

C

(-1, 7/3)

D

(-1/3, 7/3)

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The correct Answer is:
A
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