Question

The area of a circle whose diameter is 18.6 in. is ______ in^2. Round to the hundredths.

Answer 1

Area of a circle = pi* radius^2
Now the radius is half the diameter so we would have to divide the diameter by 2 to get the radius
So 18.6/2=9.3
Area of circle \(= \pi*9.3^2=271.72\)

Answer 2

and there is your answer