Definitions, Postulates, and Theorems Review

Front

What is a right angle?

Back

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

Front

What does the Transitive Property state?

Back

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

Front

What is the definition of an angle bisector?

Back

An angle bisector is a ray that divides an angle into two equal parts.

Front

What does the Vertical Angle Theorem state?

Back

The Vertical Angle Theorem states that opposite angles formed by two intersecting lines are 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 definition of a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What is the definition of adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

What is the definition of a linear pair?

Back

A linear pair is a pair of adjacent angles that are formed when two lines intersect.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.