Question

1.Is it possible for all three of the lines l, m, and n to be parallel to the opposite sidelines and also concurrent?
construct three noncolinear points A,B,C, the three sidelines of triangle ABC and moveable points L,M,N on the sidelines BC,AC,AB

Answer 1

please define 'sidelines'

Answer 2

let triangle ABC let L,N,M on the sidelines of BC,AC,AB.lines l=AL,m= BM,n=CD called Cavian lines for triangle ABC. point L is on BC