Parallel Lines Proofs

Front

What is the reason for Statement #1 in a proof involving parallel lines?

Back

Given

Front

What is the reason used when replacing one expression with another in a proof?

Back

Substitution

Front

What is the correct reason for statements 2 and 4 in a proof involving angles?

Back

Vertical Angles are congruent.

Front

Find the measure of angle 1 if it is given that angle 1 + angle 2 = 180° and angle 2 = 136°.

Back

44°

Front

What is the relationship of ∠4 and ∠7 if they form a straight line?

Back

Linear Pair

Front

What are corresponding angles?

Back

Angles that are in the same position on parallel lines cut by a transversal.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the parallel lines.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the parallel lines.

Front

What is the definition of congruent angles?

Back

Angles that have the same measure.

Front

What is the Transitive Property in geometry?

Back

If angle A = angle B and angle B = angle C, then angle A = angle C.