Geometry Vocab and theorems

Front

Vertical angles: 2 and 7

Back

2 and 7

Front

Alternate interior angles:

Back

7 and 3

Front

Corresponding angles:

Back

2 and 3

Front

Identify the transversal line.

Back

m

Front

Pair of angles forming a linear pair?

Back

1 and 2

Front

Theorem stating angles 4 and 6 are congruent.

Back

Vertical Angle Theorem: Vertical angles are congruent.

Front

Theorem stating angles 4 and 8 are congruent:

Back

Alternate Interior Angle Theorem - When 2 parallel lines are cut by a transversal, alternate interior angles are congruent.

Front

Theorem stating angles 1 and 6 are congruent.

Back

Alternate Exterior Angle Theorem: When 2 parallel lines are cut by a transversal, alternate exterior angles are congruent.

Front

Theorem stating angles 7 and 5 are congruent.

Back

Corresponding Angle Theorem: When 2 parallel lines are cut by a transversal, corresponding angles are congruent.

Front

Justification for 1 and 2 being supplementary?

Back

Linear Pair Postulate: Adjacent angles forming a straight line are supplementary.