Question

20 points for both questions : A landscaper mows a circle in a grass field.

What is the area of the circle?

A horse trainer walks a horse around the circular track shown below what is the circumference of the track?

Answer 1

10. 98

11. 92

Explanation:

The circumference of a circle is:

`2\pi r` or
`d\pi`,

where r is the radius of a circle or d is the diameter.

In the first example,

`d=98, \\\\=98\pi`

Second,

`r=46\\\\46*2*\pi \\\\=92\pi`