Types of Angles and Lines

Front

Angles that share a vertex and one side

Back

Adjacent Angles

Front

Lie on the same side of the transversal and in corresponding parts

Back

Corresponding Angles

Front

An angle that measures 90 degrees

Back

Right Angle

Front

A line that intersects two other lines at different points

Back

Transversal

Front

Angles that add to 180 degrees

Back

Supplementary Angles

Front

Angles that add to 90 degrees

Back

Complementary Angles

Front

Angles that are opposite each other when two lines intersect

Back

Vertical Angles

Front

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

Back

Parallel Lines

Front

An angle that measures less than 90 degrees

Back

Acute Angle

Front

An angle that measures more than 90 degrees but less than 180 degrees

Back

Obtuse Angle