Question

What is the surface area of this cylinder?

Use a ~ 3.14 and round your answer to the nearest hundredth.
7 mm
9 mm
square millimeters

Answer 1

Surface are of cylinder having height 9 mm and radius 7 mm is 703.36 mm²

Explanation:

We are given:

Height of cylinder = 9 mm

Radius of cylinder = 7 mm

We need to find surface area of cylinder.

The formula used to find surface area of cylinder is:
`\mathbf{Surface \ Area \ of \ cylinder = 2\pi rh+2\pi r^2}`

Now, putting values and finding surface area of cylinder

`Surface \ Area \ of \ cylinder = 2\pi rh+2\pi r^2}\\Surface \ Area \ of \ cylinder = 2* 3.14 * 7 * 9+2* 3.14 * (7)^2\\Surface \ Area \ of \ cylinder = 395.64+307.72\\Surface \ Area \ of \ cylinder = 703.36 \ mm^2`

So, surface are of cylinder having height 9 mm and radius 7 mm is 703.36 mm²