Question

The diameter of closed cylinder is 21cm and height 10cm. Find the total surface area of the cylinder.​

Answer 1

Answer:

first you have to know the formula of total surface area (TSA)

of cylinder which is 2 x pi x radius x height +2 x pi x radius x radius

Step-by-step explanation:

r=21/2

height = 10 cm

2 x 22/7 x 21/2 x 10 + 2 x 22/7 x 21/2 x 21/2

so we get the answer 1716 cm square