Angle Relationships

Front

What are complementary angles?

Back

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

Front

If angle A is 30 degrees, what is the measure of its complementary angle B?

Back

Angle B measures 60 degrees.

Front

What is the sum of the measures of two angles that are supplementary?

Back

The sum of the measures of supplementary angles is 180 degrees.

Front

If angle A is 118 degrees, what is the measure of its supplementary angle B?

Back

Angle B measures 62 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, summing to 180 degrees.

Front

If angle 1 and angle 5 form a linear pair, what is the relationship between their measures?

Back

The measures of angle 1 and angle 5 add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

If angle 1 is 45 degrees, what is the measure of its vertical angle?

Back

The vertical angle also measures 45 degrees.

Front

What is the equation to find the measure of angles in a linear pair?

Back

Front

What is the equation to find the measure of complementary angles?

Back