Question

What is the surface of a cylinder that has a height of 8 and a radius of 10

Answer 1

Surface area I'm guessing. 1,130.4

Explanation:

The formula for the surface area of a cylinder is: 2*pi*r^2 + 2*pi*r*h.

Plug in the values given.

2*pi*10^2 + 2*pi*10*8

628 + 502.4 = 1,130.4

(If you want the most precise value, use a calculator for pi instead of just 3.14.)

Answer 2

`S A = 1130.4`

square units.

EXPLANATION

The given cylinder has a height of 8 and a radius of 10.

The formula for calculating the surface area of a cylinder is

`S A = 2\pi \: r(r + h)`

We substitute r=8 and h=10 into the formula to get:

`S A = 2\pi \: 10(10+ 8)`

`S A = 360\pi`

Or using π=3.14

`S A = 1130.4`

units square.