Transversal Proofs

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent.

Front

What is the Transitive Property?

Back

The Transitive Property states that if angle A is congruent to angle B, and angle B is congruent to angle C, then angle A is congruent to angle C.

Front

What happens when two parallel lines are cut by a transversal?

Back

When two parallel lines are cut by a transversal, the angles formed can be classified as congruent or supplementary.

Front

What is the Vertical Angles Theorem?

Back

The Vertical Angles Theorem states that vertical angles are congruent.

Front

What is the Substitution Property?

Back

The Substitution Property states that if two values are equal, one can be substituted for the other in any expression.

Front

What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines and on opposite sides of the transversal.

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal.

Front

What is the definition of Supplementary Angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the definition of Complementary Angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What is the Linear Pair Postulate?

Back

The Linear Pair Postulate states that if two angles form a linear pair, they are supplementary.