Answer:
A≈254.34
Explanation:
The radius is half of the diameter, so in this case the radius is 9 inches.
r=9 inches
The formula for finding the radius of a circle is: A = r²
When we substitute we come up with:
A= 3.14*9²
Then we square 9 and come up with 81
Substitute.
A=3.14*81
Multiply.
A=254.34
You do have to put an estimation sign in your final answer because you substituted 3.14 for π
Hope this helped<33