Question

Beth is covering a cylinder can't create a pencil container for a test. The cat is 15 cm tall and has a diameter of 7 cm. How much paper what she need to cover only the sides of the can.

Please help...thx

Answer 1

`A = 329.7`

Explanation:

Given

`h = 15` --- height

`d = 7` --- diameter

Required

Paper needed to cover the sides

To do this, we simply calculate the surface area of the cylinder (without considering the top and bottom)

This is calculated as:

`A = 2\pi rh`

Where

`r = (d)/(2)`

`r = (7)/(2)= 3.5`

The formula becomes

`A = 2 * 3.14 *3.5 *15`

This gives:

`A = 329.7`