10th grade geometry help?

Question

The perimiter of a round cake pan is 37.7 inches. Determine the area of this pan. Include the proper units of measurement in your final answer.
help? please include work. thanks!

Answer 1

The perimiter of a round cake pan is 37.7 inches.

                                    2∏r = 37.7

The pan has shape like circle

Area of the circle is     ∏r^2

Now    2∏r = 37.7

            r = (37.7)/2∏

           r^2 = [(37.7)/2∏]^2

So, area of the circle is    ∏r^2 = ∏×[(37.7)/2∏]^2

                                               ∏r^2  = 113.16 in^2    ( ∏= 3.14)

Area of the circle is     113.16 in^2