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The volumes of two cubes are in the ratio 8 : 27. Find the ratio of their surface areas.

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The volumes of two cubes are in the ratio 8 : 27. Find the ratio of their surface areas.

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Ratio of two cube = 8:27

Let volumes of the two cubes be 8x and 27x

Let a and b be the sides of first cube and second cube respectively.

Volume of cube = (side)3

8x = a3

and 27x = b3

Formula to find surface area = 6(side)2

The required ratio is 4:9.

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