In a triangle $ABC,$ point $D$ lies on $AB$. It is given that $AD=25, BD=24, BC=28, CD=20. AC=?$
Source: Malaysia National Math Olympiad - Sulong Problem 5
Tags: geometry
In a triangle $ABC,$ point $D$ lies on $AB$. It is given that $AD=25, BD=24, BC=28, CD=20. AC=?$