Question

The diameter of a circular dartboard is 18 inches. What is the area

of the dartboard? Write your answer using pi Show your work.

Answer 1

Answer:
`\\81\pi`

Step-by-step explanation:

`Use\ the\ formula\ A=\pi r^(2) \ and \ d=2r.\\\\d=2r\\18=2r\\r=9,\ so\ the\ radius\ is\ 9\ inches.\ We\ can\ then\ use\ the\ area\ formula.\\\\A=\pi r^(2) \\A=\pi 9^(2) \\A=81\pi`

≈254.47
`in^(3)`