If the points \( (2 a, a),(a, 2 a) \) and \( (a, a) \) enclose a triangle of area 72 units, then....

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If the points \( (2 a, a),(a, 2 a) \) and \( (a, a) \) enclose a triangle of area 72 units, then co-ordinates of the centroid of the triangle may be:
\( \mathrm{P} \)
(1) \( (4,4) \)
(2) \( \quad(-4,4) \)
(3) \( (12,12) \)
(4) \( (16,16) \)


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