Question

Base area of a right circular cylinder is $80{cm}^2$. If its height is $5cm$, then the volume is equal to

• A. $400{cm}^3$
• B. $16{cm}^3$
• C. $200{cm}^3$
• D. $\frac{400}{3}{cm}^3$

Answer 1

Answer: (A)

$400{cm}^3$

We have,

$h=5cm$

Base area $=80c{m}^2$

$\pi r^2=80\Rightarrow r=5.05cm$

We know that the volume of the cylinder

$=\pi r^{2}h$

So,

$=\frac{22}{7}\times (5.05{)}^2\times 5$

$=400c{m}^3$

Hence, this is the answer.