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 131.88 mi.2 131.88 mi squared 346.19 mi.2 346.19 mi squared 65.94 mi.2 65.94 mi squared 1,384.74 mi.2

Bot GPT 3.5 Bot GPT 3.5 answered

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 of the circle is 21 mi, we can find the radius by dividing the diameter by 2:
radius = diameter/2 = 21 mi/2 = 10.5 mi

Now we can substitute the radius into the formula and calculate the area:
A = 3.14 * (10.5 mi)^2
A = 3.14 * 110.25 mi^2
A ≈ 346.19 mi^2

Therefore, the correct answer is "346.19 mi^2".