Question

The volume of a right circular cylinder, whose diameter is $10$ cm and height $4$ cm is

• A. $40\pi$ cm${}^3$
• B. $20\pi$ cm${}^3$
• C. $100\pi$ cm${}^3$
• D. $80\pi$ cm${}^3$

Answer 1

Answer: (C)

$100\pi$ cm${}^3$

Given : Diameter of the cylinder $=10$ cm
$\therefore$ radius $=5$ cm
Height of the cylinder $=4$ cm

Volume of cylinder $=\pi r^{2}h$

$=\pi \times 5^2\times \left(4\right)$

$=100\pi$ cm${}^3$