Question

The area of a pizza is 616 square centimeters.
What is the radius?
Remember a=3.14r^2
Use 3.14=22/7

Answer 1

Well $A= \pi r^2$
$616= \pi r^2$
$\frac{616}{\pi} =r^2$
$\sqrt{\frac{616}{\pi}} =r$
$\sqrt{\frac{616(7)}{22}} =r$
$14=r$