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If D(-2, 3), E (4, -3) and F (4, 5) are ...

If D(-2, 3), E (4, -3) and F (4, 5) are the mid-points of the sides BC, CA and AB of triangle ABC, then find `sqrt((|AG|^(2)+|BG|^(2)-|CG|^(2)))` where, G is the centroid of `Delta ABC`.

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The correct Answer is:
`=(32)/(3)`
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