Question

12. Laura wants to buy edging for her circular garden. If the garden has a diameter of 12 feet, how many feet of edging does she need? The edging is sold in foot-long lengths. How many lengths must she buy?

Answer 1

Given:

Diameter of the circular garden = 12 feet

Let's solve for the following:

• (a). How many feet of edging does she need.

To find the amount of feet of edging needed, apply the circumference of a circle formula:

`C=2\pi r`

Where r is the radius.

To find the radius, we have:

Radius = diameter/2 = 12/2 = 6 feet.

Therefore, to find the amount of feet of edging, we have:

`\begin{gathered} C=2\pi*6 \\ \\ C=37.7\text{ ft} \end{gathered}`

She will need to buy 37.7 feet of edging.

ANSWER:

37.7 feet