Intro to Proofs

Front

What is the Angle Addition Postulate?

Back

The Angle Addition Postulate states that if point B is in the interior of angle AOC, then the measure of angle AOB plus the measure of angle BOC equals the measure of angle AOC.

Front

What is the Congruent Supplements Theorem?

Back

The Congruent Supplements Theorem states that if two angles are supplements of the same angle (or congruent angles), then the two angles are congruent.

Front

What is the definition of a midpoint?

Back

A midpoint is a point that divides a segment into two congruent segments.

Front

What is the definition of segment congruence?

Back

Segment congruence means that two segments have the same length.

Front

What is the definition of angle congruence?

Back

Angle congruence means that two angles have the same measure.

Front

What is the definition of a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What are complementary angles?

Back

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

Front

What are 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 of Equality states that any quantity is equal to itself.

Front

What is the Symmetric Property of Equality?

Back

The Symmetric Property of Equality states that if one quantity equals a second quantity, then the second quantity equals the first.