Parallel Lines Theorems and Postulates

Question 1

correspond angles postulate

Answer 1

if two parallel lines are intersected by a transversal the corresponding angles are congruent

Question 2

alternate interior angles theorem

Answer 2

if two parallel lines are intersected by a transversal then the alternate interior angles are congruent

Question 3

same-side interior angles theorem

Answer 3

if two parallel lines are intersected by a transversal then the same side interior angles are supplementary

Question 4

alternate exterior angles theorem

Answer 4

if two parallel lines are intersected by a transversal then the alternate exterior angles are congruent

Question 5

Same-side exterior angles theorem

Answer 5

if two parallel lines are intersected by a transversal then the same side exterior angles are supplementary

Question 6

corresponding angles postulate converse

Answer 6

If corresponding angles are congruent, then the 2 lines are parallel

Question 7

alternate interior angles theorem converse

Answer 7

If alternate interior angles are congruent, then the 2 lines are parallel

Question 8

same-side interior angles theorem converse

Answer 8

if same side interior angles are supplementary, then the 2 lines are parallel

Question 9

alternate exterior angles theorem converse

Answer 9

if alternate interior angles are congruent, then the 2 lines are parallel

Question 10

same-side exterior angles theorem converse

Answer 10

if same side exterior angles are supplementary, then the 2 lines are parallel