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Consider a triangle PQR, whose centroid ...

Consider a triangle PQR, whose centroid is G Let L, M, N be the mid point of sides QR, RP, PQ respectively and co-ordinates of L, M, N are L (3a, 0, 0) M (0,3b, 0) N(0, 0, 3c) then the area of triangle GQR

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