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 65.94 mi.2 65.94 mi squared 346.19 mi.2 346.19 mi squared 131.88 mi.2 131.88 mi squared 1,384.74 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 (r) would be half of the diameter, so r = 21 / 2 = 10.5 mi.
Plugging this into the formula: A = 3.14 * 10.5^2 = 3.14 * 110.25 = 346.185
Rounded to the nearest hundredths place, the area of the circle is 346.19 mi squared.
Therefore, the correct answer is: 346.19 mi squared.