Use the correct formula to find the area of a circle if the diameter is 21 mi. Round to the nearest hundredths place. Use 3.14
(1 point)
The formula to find the area of a circle is:
Area = π * radius^2
Given the diameter of the circle is 21 mi, we can find the radius by dividing the diameter by 2:
Radius = Diameter / 2
Radius = 21 mi / 2
Radius = 10.5 mi
Now, substitute the value of the radius into the area formula:
Area = 3.14 * (10.5 mi)^2
Area = 3.14 * 110.25 mi^2
Area = 345.855 mi^2
Rounded to the nearest hundredth, the area of the circle is 345.86 mi^2.