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?

First of all, you get no rank increase by submitting a solution, even one that's right.

Second of all the solutions aren't 6 and -10, they are 6 and -10/3.

Posted by Gamer on 2003-10-10 17:13:09