Question 785254
{{{drawing(300,300,-3,12,-3,12,
line(-3,0,12,0),
line(-2,-3,3,12),
line(1,6,12,6),
line(10,-3,5,12),
arrow(5,0,11,0),arrow(5,6,11,6),
locate(-1,0,A),locate(0.5,6.5,B),
locate(7,7,C),locate(9.5,0,D),
locate(-1.9,0,1),locate(1.4,6.8,6),
locate(6.1,6.8,5),locate(7.4,6,4),
locate(8.3,0.8,2),locate(6.4,6,3)
)}}} Angle 1 & angle 6 are alternate exterior, angle 2 and angle 3 same side interior, and angle 4 and angle 5 are each supplementary to angle 3.
(Angles 2 and 4 are alternate interior).