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 simple by bharath)

Triangle acd is NOT equilateral!

Posted by RoyCook on 2003-10-13 12:55:06