Question 80

The ratio of the volumes of two cubes is 1 : 27. The ratio of other surface areas will be

Solution

Volume of cube = $$ s^{3}$$

Area of the cube = 6 x $$ s ^ {2} $$

So, if the volume is in the ratio of 1:27, the sides are in the ratio of 1:3 and hence the areas are in the ratio of 1:9

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