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 Another note: by Gamer)

Actually, if Callum had already ranked at least one problem, and posted two other comments, then this comment would move him from being a Novice to a Student, wouldn't it?

Posted by nikki on 2003-10-13 17:58:14