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11. The ratio of the volumes of two cubes is 27 : 64. Find the ratio of their sides.​

Answer»

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given. RATIO of vol .= 27/64

. a cube / B cube = (3) cube/(4) cube

therefore SIDES of cube (a) and cube (b) are 3 and 4 respectively.

hence the ratio of their surface areas are 6 a square / 6 b square.

I.e = 9/16


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