SOLUTION: I have worked this problem out several times, and get the same answer, but my answer is not one of my options. what is the exact area of a circle with a diameter of 27 in. this i

Algebra ->  Volume -> SOLUTION: I have worked this problem out several times, and get the same answer, but my answer is not one of my options. what is the exact area of a circle with a diameter of 27 in. this i      Log On


   



Question 478992: I have worked this problem out several times, and get the same answer, but my answer is not one of my options.
what is the exact area of a circle with a diameter of 27 in.
this is what i worked out;
27/2=13.5
pi*13.5^2=572.55
the options the homework gives me are a)11.5pi, b)27pi, c)54pi, d)182.25pi, and e)729pi
I am very confused on this one, please help

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The exact answer is p*13.5^2
= 182.25*pi sq inches
---------------
When you multiply it, you get an approximation.