Question

Curved surface area of a right circular cylinder is $4.4$ $m^2$ If the radius of the base of the cylinder is $0.7$ m then its height is

• A. $2$ m
• B. $3$ m
• C. $4$m
• D. $1$ m

Answer 1

The correct option is D $1$ m

Curved surface area $=2\pi rh=4.4$

$\Rightarrow 2\times \frac{22}{7}\times 0.7\times h=4.4\Rightarrow h=1m.$