Question

Ariel has made a circular flower garden in her yard and she would like to put a plastic border around it. The garden has a radius of 8 feet. Which expression could be used to find the length (in feet) of plastic border she will need to put around her garden?

Answer 1

She will need approximate
`50.24\ ft` of plastic border

Explanation:

we know that

The circumference of a circle is equal to

`C=2\pi r`

In this problem we have

`r=8\ ft`

substitute

`C=2\pi (8)=16 \pi\ ft` ----> exact value of the length of plastic border

assume

`\pi=3.14`

`16 (3.14)=50.24\ ft` ---> approximate value of the length of plastic border