Question

What is the surface area of a cylinder with a height of 9 cm and a base diameter of 10 cm?

Answer 1

`439.82`

Explanation:

Surface area of a cylinder `=2pir^2+2pirh`,
where `r=radius`, and `h=height`

Radius `r=1/2` diameter

Given `h=9, d=10, => r=10/2=5`

Surface Area `=2*pi*5^2+2*pi*5*9=439.82`