Question

Help show work and explain thanks

Answer 1

First of all, there are a few things you should know:

1) Area of a cylinder:
`\pi r^(2) h`
2) Area of a cone:
`(1)/(3) \pi r^(2) h`

To solve this, just plug it in:

Cylinder:
`\pi * 2^(2) * 7 = 28 \pi`
Cone:
`(1)/(3) * \pi * 2^(2) * 3 = 4 \pi`

The total is
`32 \pi`