T2 Angle Proofs #1

Front

What is a right angle?

Back

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

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the Vertical Angle Theorem?

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 an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is the definition of an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 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 and are supplementary.

Front

What is the definition of a transversal?

Back

A transversal is a line that intersects two or more lines at different points.