2/25/21 Angle Relationships

Front

What is the measure of the missing angle if one angle is 128 degrees?

Back

52 degrees

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect. They are always congruent (equal measures).

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of complementary angles is 90 degrees.

Front

What is the measure of an angle that is supplementary to a 74-degree angle?

Back

The measure is 106 degrees.

Front

What is the definition of adjacent angles?

Back

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

Front

If angle A measures 38 degrees, what is the measure of its vertical angle?

Back

The measure of the vertical angle is also 38 degrees.

Front

What is the relationship between angles that are formed by two intersecting lines?

Back

The angles formed are vertical angles and are congruent (equal in measure).

Front

If angle B is 142 degrees, what is the measure of its supplementary angle?

Back

The supplementary angle measures 38 degrees.

Front

What is the measure of angle C if it is complementary to angle D, which measures 58 degrees?

Back

Angle C measures 32 degrees.

Front

What do we call angles that add up to 180 degrees?

Back

Angles that add up to 180 degrees are called supplementary angles.