Special Angle Pairs

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

Define adjacent angles.

Back

Adjacent angles are two angles that share a common vertex and a common side but do not overlap.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

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

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that form a straight line, meaning their measures add up to 180 degrees.

Front

If one angle in a pair of supplementary angles measures 75°, what is the measure of the other angle?

Back

105°

Front

Identify the angle pair: angles that are equal and opposite each other when two lines intersect.

Back

Vertical angles.

Front

Back

Front

Back

Front

Back

60°.