Question

Calculate the circumstance and the area of the circular flower bed.

Answer 1

The circumference of a circle of radius r is:

`C=2\pi r`

And the area is:

`A=\pi r^2`

The circular flower bed has a diameter of d = 12 feet. The radius is half the diameter:

r = 12/2 = 6 feet.

Calculate the circumference:

`\begin{gathered} C=2\pi\cdot6\text{ ft} \\ C=12\pi \end{gathered}`

Calculate the area:

`\begin{gathered} A=\pi\cdot(6\text{ feet})^2 \\ A=36\pi\text{ }feet^2 \end{gathered}`

Third choice