Question 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 131.88 mi.2 131.88 mi squared 65.94 mi.2 65.94 mi squared 346.19 mi.2
The correct formula to find the area of a circle is A = πr^2, where r is the radius of the circle.
Given that the diameter is 21 mi, the radius would be half of the diameter, so the radius is 21/2 = 10.5 mi.
Now, substitute the radius into the formula: A = 3.14*(10.5)^2 = 3.14*110.25 = 346.185
Rounded to the nearest hundredths place, the area is 346.19 mi^2.
Therefore, the correct answer is 346.19 mi^2.