Question

The volume of a cylinder is $550{cm}^3$. If its radius is $5cm$, then its height is ................ $cm$.

• A. $12$
• B. $9$
• C. $7$
• D. $14$

Answer 1

Answer: (C)

$7$

Given : Volume of a cylinder $=550c{m}^3$

We know that, Volume of a cylinder $=\pi r^{2}h$
$⟹550=\frac{22}{7}\times 5\times 5\times h$
$⟹h=\frac{550\times 7}{22\times 25}=7cm$

Hence, height of the cylinder is $7cm$