Question

Use a paragraph proof to prove:

If two parallel lines are cut by a transversal, then corresponding angles are congruent. [see attachment]

Answer 1

Perhaps it is like this, not sure though :(
angle 6 + angle 3 =180 ( int angle of //lines)
angle 2 + angle 3 = 180 ( adj angle on st. lines)
angle 2 = 180 - angle 3
= angle 6