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

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Solution

(b) 4851 cm³
Volume of the sphere = $\frac{4}{3} π r^{3}$
$= \frac{4}{3} \times \frac{22}{7} \times 10.5 \times 10.5 \times 10.5 = 88 \times 0.5 \times 10.5 \times 10.5 = 4851 {cm}^{3}$

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

(b) 4851 cm3Volume of the sphere = 43πr3 =43×227×10.5×10.5×10.5=88×0.5×10.5×10.5 = 4851 cm3

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

(b) 4851 cm³
Volume of the sphere = $\frac{4}{3} π r^{3}$
$= \frac{4}{3} \times \frac{22}{7} \times 10.5 \times 10.5 \times 10.5 = 88 \times 0.5 \times 10.5 \times 10.5 = 4851 {cm}^{3}$