The ratio of the volumes of two spheres is 8 : 27. The ratio between their surface areas is :
Asked by swetha | 2nd Jan, 2014, 07:14: AM
Given that the ratio of the volumes of two spheres is
Let R and r be the radii of the two spheres.
Therefore, the ratio of their respective volumes
Since it is given that the ratio is 8:27, we have
Now consider the ratios of their respective surface areas.
Thus, we have
Answered by Vimala Ramamurthy | 2nd Jan, 2014, 09:12: AM
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