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If A=(1, 2, 3), B=(4, 5, 6), C=(7, 8, 9)...

If `A=(1, 2, 3), B=(4, 5, 6), C=(7, 8, 9)` and D, E, F are the mid points of the triangle ABC, then find the centroid of the triangle DEF.

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The correct Answer is:
`(4, 5, 6)`
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