Question

Which is approximately equal to the area of the circle? Use twenty-two sevenths for pi.

A circle is shown with its diameter labeled twenty-eight feet

eighty-eight square feet
three hundred eight square feet
six hundred sixteen square feet
seven hundred eighty-four square feet

Answer 1

B.

Answer 2

So the area of a circle is pi times the radius squared.
The radius is half the diameter, so 14 in this case.
Square fourteen to get 196.
Multiply that by pi to get six hundred sixteen, so the answer is C.