Linear, vertical, supplementary and complementary angles

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°.

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

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

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

If angle 1 is 70°, what is the measure of its complementary angle?

Back

The measure of the complementary angle is 20°.

Front

If angle 2 is 110°, what is the measure of its supplementary angle?

Back

The measure of the supplementary angle is 70°.

Front

Identify the angle pair: Angles that are adjacent and add up to 180°.

Back

Linear Pair.

Front

Identify the angle pair: Angles that are opposite each other when two lines intersect.

Back

Vertical Angles.

Front

If angle 3 is 45°, what is the measure of angle 4 if they are a linear pair?

Back

Angle 4 measures 135°.

Front

If angle 5 is 30°, what is the measure of its complementary angle?

Back

The measure of the complementary angle is 60°.