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In Delta ABC, if bar(a), bar(b), bar(c)...

In `Delta ABC, ` if `bar(a), bar(b), bar(c)` are position vectors of the vertices A, B, and C respectively, then prove that the position vector of the centroid G is `(1)/(3) (bar(a) + bar(b) + bar(c))`

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The correct Answer is:
`(bar(a) + bar(b) + bar(c))/(3)`
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