I need major help with this math problem and if you can help me asap, that would be amazing.
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 angel EAF= 45° If [ CEF] = 1/19, what is the value of [ AEF] ?
