1. The problem statement, all variables and given/known data (I have attached the problem to this post as a file) 2. Relevant equations In class we learned other fomulas for the area of a triangle using the SAS case, ASA and SSS (Heron's). 3. The attempt at a solution I am honestly so confused with this one. I have a bunch of random facts that are basically given in the question like [AFB]/[FEB] = AF/FE = 1. That CD/DE = 1/4. But I can't even solve (a). Any help or hints would be really appreciated.