Question

What is the surface area of this cylinder?

Answer 1

Answer:

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

Step-by-step 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

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

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