Geo. 2.7 & 2.8 Flashcard Segment & Angle Relationships 2025 - 2026

Front

What is the Symmetric Property of Equality?

Back

If a = b, then b = a.

Front

What does the Segment Addition Postulate state?

Back

If point B is between points A and C, then AB + BC = AC.

Front

What is the Definition of Supplementary Angles?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

What is the Definition of a Right Angle?

Back

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

Front

What is the Transitive Property of Congruence?

Back

If A ≅ B and B ≅ C, then A ≅ C.

Front

What is the Reflexive Property of Congruence?

Back

Any geometric figure is congruent to itself.

Front

What is the Vertical Angles Theorem?

Back

Vertical angles are congruent.

Front

What is the Definition of Complementary Angles?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

What is the Congruent Complements Theorem?

Back

If two angles are complements of the same angle (or congruent angles), then they are congruent.

Front

What is the Addition Property of Equality?

Back

If a = b, then a + c = b + c for any c.