Question

Danny draws a transversal, t, on two parallel lines AB and CD, as shown below:

Two parallel lines are shown cut by a transversal labeled t. 1, 2, 7 and 8 are marked clockwise as exterior angles. 4, 3, 6, and 5 are marked clockwise as interior angles

He makes the following table to prove that the alternate interior angles are equal:

Statement Justification
angle 2 = angle 6 ?
angle 2 = angle 4 Vertical angles are congruent.
angle 4 = angle 6 transitive property of equality,
angle 2 = angle 6,
angle 2 = angle 4,
therefore angle 4 = angle 6

Which is the missing justification? (6 points)

Corresponding angles formed by a transversal on parallel lines are supplementary.
Corresponding angles formed by a transversal on parallel lines are congruent.
Co-interior angles formed by a transversal on parallel lines are congruent.
Co-exterior angles formed by a transversal on parallel lines are congruent.

Answer 1

??

Answer 2

post the drawn please