Answer:
B. 254 cm²
Explanation:
Hello!
Circle
The formula for the area of a circle is
- A is area
- π is pi (roughly 3.14)
- r is the radius
The radius is half of the diameter, given with the formula
Area
Using the information, we can first solve for the radius.
The radius is 9
Now we can plug 9 into the area formula:
We are going to use 3.14 for pi
The area is 254.34cm².
We are going to round to the nearest whole centimeter, which is roughly 254cm² or