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Centroid of a Triangle

If the origin...

Question

If the origin is the centroid of the triangle ABC with vertices A (2a, 14, 6), B (8, 3b, -10) and C(-4, 2, 2c), then the values of a and c are.

2 and -2

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-2 and 2

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Solution

The correct option is C
-2 and 2

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