Which is NOT a method that can be used to prove that lines i and k are parallel?
Responses
A Show congruence of a pair of alternate interior angles.Show congruence of a pair of alternate interior angles.
B Show that both lines are perpendicular to a third line.Show that both lines are perpendicular to a third line.
C Show that a pair of interior angles on opposite sides are supplementary.Show that a pair of interior angles on opposite sides are supplementary.
D Show congruence of a pair of corresponding angles.Show congruence of a pair of corresponding angles.
Question 2
Lines l and k intersect forming two pairs of vertical angle. If one of these angles measure 120°, what are the measures of the other three angles?
Responses
A 60°, 60°, 60°60°, 60°, 60°
B 120°, 120°, 120°120°, 120°, 120°
C 60°, 90°, 90°60°, 90°, 90°
D 60°, 60°, 120°60°, 60°, 120°