Look at this shape:

Assume AB = AF = FE = ED and BC = CD, and all the angles in the shape are 90 degrees.

Let A be the area of this shape (in cm^2), and P -- the perimeter of this shape (in cm).

If A - P is 60, what is the length of line AC?

(In reply to not too sure but i think i got it by iggyb387)

new answer, I put 6√5 which is equal to 13.4164078... so AC=13.416...

Posted by iggyb387 on 2003-10-15 20:23:34