Question

Use the net to find the lateral area of the cylinder 9yd 4yd

9yd is the radius and 4yd is the height

Give your answer in terms of pi

Answer 1

The formula of a lateral area of a cylinder:

`LA=2\pi rH`

We have r = 9 yd and H = 4 yd. Substitute:

`LA=2\pi(9)(4)=72\pi\ yd^2`