Question

The diameter of a cylinder is 28 m and height is 20 m. What is the total surface
area of the cylinder ?​

Answer 1

${\large{\green{\mathcal{ANSWER :}}}}$

Here, d = 28 m and h = 20 m.

So, r = d/2 = 28/2 = 14 m.

Total surface area of cylinder = 2πr(h + r)

= 2 × 22/7 × 14(20+14)

= 88 (34)

= 2992 cm².

$\longrightarrow$ Hence,the total surface area of cylinder is 2992 cm².