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10th grade geometry help?

0 votes
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!
asked Dec 29, 2012 in GEOMETRY by andrew Scholar

1 Answer

+1 vote

The perimiter of a round cake pan is 37.7 inches.

                                    2r = 37.7

The pan has shape like circle

Area of the circle is     r^2

Now    2r = 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

answered Dec 29, 2012 by Johncena Apprentice

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