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If a,b and c are the position vectors of...

If a,b and c are the position vectors of the vertices A,B and C of the `DeltaABC`, then the centroid of `DeltaABC` is

A

A. `(a+b+c)/(3)`

B

B. `(1)/(2)(a+(b+c)/(2))`

C

C. `a+(b+c)/(2)`

D

D. `(a+b+c)/(2)`

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A
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