The formula for the area of a circle is

We know the diameter, and the radius is half of the diameter. So the radius is 9. Now we plug that into the formula.

So the answer is B, 81 pi square feet
-sinx + C
hope this helps!
Answer:
area of B or another side tell fast I will answer
Answer:
121-22
Step-by-step explanation:
Answer:
There were 53 cakes ordered.
Step-by-step explanation:
☆Cross multiply.

▪Happy to help <3