MathDB
2015 Guts #27

Source:

August 1, 2022
2015Guts Test

Problem Statement

In triangle ABCABC, DD is a point on ABAB between AA and BB, EE is a point on ACAC between AA and CC, and FF is a point on BCBC between BB and CC such that AFAF, BEBE, and CDCD all meet inside ABC\triangle ABC at a point GG. Given that the area of ABC\triangle ABC is 1515, the area of ABE\triangle ABE is 55, and the area of ACD\triangle ACD is 1010, compute the area of ABF\triangle ABF.