Question

The surface area of a solid sphere is always greater than the surface area of a hemisphere for the same value of radius.

• A. True
• B. False

Answer 1

The correct option is A True

Let radius of solid sphere=radius of hemisphere$=r$

Then, S.A of solid sphere$=4\pi r^2$

S.A of hemisphere$=2\pi r^2$

$\therefore$S.A. of solid sphere$>$ S.A of hemisphere

Hence statement is true