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 for π .(1 point) Responses 1,384.74 mi.2 1,384.74 mi squared 65.94 mi.2 65.94 mi squared 346.19 mi.2 346.19 mi squared 131.88 mi.2
The correct formula to find the area of a circle is A = πr^2, where r is the radius of the circle. Since the diameter is given instead of the radius, we need to divide the diameter by 2 to get the radius.
Given diameter = 21 mi
Radius = 21 / 2 = 10.5 mi
Now, plug in the values into the formula:
A = 3.14 * (10.5)^2
A = 3.14 * 110.25
A = 346.185
Rounded to the nearest hundredths place, the area of the circle is 346.19 mi^2.
Therefore, the correct answer is: 346.19 mi squared