Proofs Review

Front

What is the definition of parallel lines?

Back

Parallel lines are lines in a plane that never meet; they are always the same distance apart.

Front

What is a transversal?

Back

A transversal is a line that intersects two or more lines at different points.

Front

What is the Corresponding Angles Postulate?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Front

What is the Alternate Interior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is equal.

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 definition of supplementary angles?

Back

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

Front

What is the Reflexive Property of Equality?

Back

The Reflexive Property states that any quantity is equal to itself (a = a).

Front

What is the Symmetric Property of Equality?

Back

The Symmetric Property states that if a = b, then b = a.

Front

What is the Transitive Property of Equality?

Back

The Transitive Property states that if a = b and b = c, then a = c.

Front

What is the first statement in the reason column of a proof?

Back

The first statement is always 'Given'.