Question

The total surface area of the right circular cylinder whose diameter is 14 cm and height is 20 cm is

Answer 1

Radius of the cylinder =

$\frac{diameter}{2}$

Radius = 7cm

TSA of cylinder =

$2\pi \: r(h + r)$

$= 2 \times \frac{22}{7} \times 7(20 + 7)$

$= 44(27)$

$= 1188 {cm}^{2}$