Question

Find the volume of the sphere whose diameter is 30 cm.

• A. 1.41428 cm${}^3$
• B. 1414.28 cm${}^3$
• C. 141.428 cm${}^3$
• D. 14142.8 cm${}^3$

Answer 1

The correct option is D 14142.8 cm${}^3$

Given: Diameter $=30cm$

$\therefore Radius=\frac{30}{2}=15cm$
$\therefore Volumeofthesphere=\frac{4}{3}\pi r^3=\frac{4}{3}\times \frac{22}{7}\times 15\times 15\times 15=14142.85c{m}^3$