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:
[tex]C=2\pi r[/tex]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:
[tex]\begin{gathered} C=2\pi\times6 \\ \\ C=37.7\text{ ft} \end{gathered}[/tex]She will need to buy 37.7 feet of edging.
ANSWER:
37.7 feet