Reasons for Proofs

Front

What is the Reflexive Property?

Back

For any segment AB, AB is congruent to AB. This property states that any geometric figure is congruent to itself.

Front

What is a Bisector?

Back

A line or line segment that divides an angle into two equal parts.

Front

What does it mean if B is the midpoint of segment RL?

Back

It means that RB is equal to BL, as per the Definition of Midpoint.

Front

What is the Definition of Midpoint?

Back

A point that divides a segment into two equal parts.

Front

What is the definition of congruent segments?

Back

Segments that have the same length.

Front

What is the Transitive Property?

Back

If segment AB is congruent to segment CD, and segment CD is congruent to segment EF, then segment AB is congruent to segment EF.

Front

What is the Symmetry Property?

Back

If segment AB is congruent to segment CD, then segment CD is congruent to segment AB.

Front

What are Alternate Interior Angles?

Back

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

Front

What is the Corresponding Angles Postulate?

Back

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

Front

What is the definition of Supplementary Angles?

Back

Two angles whose measures add up to 180 degrees.