For a triangle XYZ, we use [XYZ] to denote its area.
Let ABCD be a square with side length 1. Points E and F lie on line BC and line CD, respectively, in such a way that angle EAF = 45 degrees. If [CEF] = 1/19, what is the value of [AEF]?
This was answered before. The answer is 4/7.
Hi, I'm pretty sure you got the answer incorrect, but it's still cool that you answered.