Use the correct formula to find the area of a circle if the diameter is 21MI round to the nearest hundredths place use 3144TR
The 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) is half of the diameter, so r = 21 / 2 = 10.5 MI.
Now substitute the radius into the formula:
A = π(10.5)^2
A = π(110.25)
A = 346.36 MI^2
Rounded to the nearest hundredths place, the area of the circle is 346.36 MI^2.