Q2 of 35 Page 205

The volume of two spheres are in the ratio 27 : 64. What is the ratio of their radii? And the ratio of their surface areas?

Let the volume and radius of the first sphere be V1 and r1

Respectively


Let the volume and radius of the second sphere be V2 and r2


Respective


Then volume of first sphere =


volume of second sphere


Given that






Let S1 and S2 be the surface areas. Then we get:







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