6. (10 points) Given AABC and ADEF, assume D is on BC, E is on AC, and F is on AB such that AD, BÈ, and CÈ are concurren
Posted: Tue May 10, 2022 9:56 am
6. (10 points) Given AABC and ADEF, assume D is on BC, E is on AC, and F is on AB such that AD, BÈ, and CÈ are concurrent. Show that if ĀB DĚ = P, AC DÈ = Q, and BC. EF = R, then P, Q, and R are collinear.