Question

Does someone know how to do this!

Answer 1

use the equation

`a = \pi {r}^(2)`
so the area of X is 153.94, or 49pi
the area of Y is 50.27, or 16pi
so the difference would be 33pi, or the third option from the top.

Answer 2

33
`\pi`

Explanation:

The formula for area of circle is
`\pi r^(2)`.

Area of Circle X =
`\pi x 7^2` = 49
`\pi`

Area of Circle Y =
`\pi` x 4^2 = 16
`\pi`

Difference = 49
`\pi` - 16
`\pi` = 33
`\pi`