Question

Curved surface of right circular cylinder is $4.4m^2$, radius of base is $0.7$ m, then the height is (Take $\pi =22/7)$.

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

Answer 1

The correct option is A $1$ m

Curved surface of right circular cylinder $=4.4m^2$

$2\pi rh=4.4$
$2\times \frac{22}{7}\times 0.7h=4.4$
$h=1m$