Emily M. answered 11/28/17
Tutor
5.0
(63)
University of Rochester Grad for Math and Science Tutoring
Use the following formulas for circumference and area of a circle:
C = pi*d
A = pi * r2
A quick way to remember the formulas is:
Cherry Pie is Delicious
Apple Pies aRe too!
Don't forget that if the diameter of the circle is 47 feet, the radius is 47/2 feet! :)