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, find its height.

Answer 1

Given:

$\Rightarrow$$R=0.7$m

$\Rightarrow$CSA$=4.4$ m${}^2$

Let's assume height be $x$

$\Rightarrow$$2\pi rh=4.4$ m${}^2$

$\Rightarrow$$2\times \frac{22}{7}\times 0.7x=4.4$

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

$\Rightarrow$Height $=1$m