The volume of a sphere of radius 10.5 cm is

Question:

The volume of a sphere of radius 10.5 cm is
(a) 9702 cm3
(b) 4851 cm3
(c) 19404 cm3
(d) 14553 cm3

Solution:

(b)  4851 cm3

Volume of the sphere $=\frac{4}{3} \pi r^{3}$

$=\frac{4}{3} \times \frac{22}{7} \times 10.5 \times 10.5 \times 10.5$

$=88 \times 0.5 \times 10.5 \times 10.5=4851 \mathrm{~cm}^{3}$

 

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