Question

Find the curved surface area, total surface area, and volume of right angle circular cylinder having radius of the base $3cm$ and height $7cm$.

Answer 1

We have,

$r=3cm,h=7cm$

We know that the volume of the cylinder

$V=\pi r^{2}h$

$V=\frac{22}{7}\times 3^2\times 7$

$V=22\times 9$

$V=198c{m}^3$

We know that the curved surface area of the cylinder

$A_c=2\pi rh$

$A_c=2\times \frac{22}{7}\times 3\times 7$

$A_c=22\times 6$

$A_c=132c{m}^2$

We know that the total surface area of the cylinder

$A_T=2\pi r^2+2\pi rh$

$A_T=2\times \frac{22}{7}\times 3^2+2\times \frac{22}{7}\times 3\times 7$

$A_T=56.57+132$

$A_T=188.57c{m}^2$

Hence, this is the answer.