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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]=1/9, what is the value of [AEF].

 

This question has already been asked, however the answer, sadly, was incorrect.

 

Thank you in advance for helping me this problem :)

 Sep 27, 2021
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[AEF] = 4/9 wink

 Sep 28, 2021

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