Question

Find the surface area of sphere whose volume is 99/7 cm3

Answer 1

Volume = $\frac{4}{3}$ π $r^{3}$ = $\frac{99}{7}$

4 x 22 x $r^{3}$ = 297

= 8 x $r^{3}$ = 27

= $r^{3}$ = $\frac{27}{8}$
 
⇒ r = $\sqrt[3]{ \frac{ 3^{3} }{ 2^{3} } }$ = $\frac{3}{2} cm$

Surface Area = 4π$r^{2}$ = $\frac{22 * 9}{7} = \frac{198}{7} = 28.28 cm^{2}$

Hope It Helps You.

Please Mark As Brainliest.