Question

The volume of a right circular cylinder can be obtained form its curved surface area by multiplying it by its

• A. $\frac{Radius}{2}$
• B. $\frac{2}{Radius}$
• C. Height
• D. $2\times$ height

Answer 1

The correct option is A $\frac{Radius}{2}$

Volume of a cylinder $=\pi R^{2}h$
Curved Surface Area of a Cylinder $=2\pi Rh$
Volume $=a\times$ Curved Surface Area ...Given
$=>\pi R^{2}h=a\times 2\pi Rh$
$=>a=\frac{r}{2}$
Hence, volume of a right circular cylinder can be obtained from its curved surface area by multiplying it by $\frac{radius}{2}$.