Angle & Segment Proofs

Front

What is the Transitive Property of Congruence?

Back

If two segments are each congruent to a third segment, then they are congruent to each other.

Front

Define the Reflexive Property of Congruence.

Back

Any geometric figure is congruent to itself.

Front

What does the Symmetric Property of Congruence state?

Back

If one figure is congruent to another, then the second figure is congruent to the first.

Front

What is the definition of perpendicular lines?

Back

Two lines that intersect to form right angles.

Front

What is the definition of supplementary angles?

Back

Two angles whose measures add up to 180 degrees.

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of angle AOC, then the measure of angle AOB + the measure of angle BOC = the measure of angle AOC.

Front

What is the definition of a linear pair?

Back

A pair of adjacent angles formed when two lines intersect.

Front

What is the Substitution Property?

Back

If two quantities are equal, one can be substituted for the other in any expression.

Front

What is the definition of congruent segments?

Back

Segments that have the same length.

Front

What is the definition of parallel lines?

Back

Two lines that never intersect and are always the same distance apart.