A spherical ball has a surface area of $\dfrac{792}{7}$sq. m. Find its volume.
7 sq.cm.
792/7 cu.cm.
792π/7 cu.cm.
792 cu.cm.
Explanation:
Surface area =$\dfrac{792}{7}$
∴$ r^2 = \dfrac{792 \times 7}{7 \times 4 \times 22}$
∴ r = 3cm
Volume = $\dfrac{4}{3} \pi r^3$ = $\dfrac{4}{3} \times 3.142 \times 3^3$
= 104 cu.cm.
Surface area =$\dfrac{792}{7}$
∴$ r^2 = \dfrac{792 \times 7}{7 \times 4 \times 22}$
∴ r = 3cm
Volume = $\dfrac{4}{3} \pi r^3$ = $\dfrac{4}{3} \times 3.142 \times 3^3$
= 104 cu.cm.