Complementary Supplementary Vertical and Adjacent Angles

Front

What is an adjacent angle?

Back

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

Front

What is the sum of complementary angles?

Back

The sum of complementary angles is 90 degrees.

Front

What is the sum of supplementary angles?

Back

The sum of supplementary angles is 180 degrees.

Front

What are vertical angles?

Back

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

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

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

Back

The measure of the complementary angle is 60 degrees (90 - 30 = 60).

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

The measure of the supplementary angle is 60 degrees (180 - 120 = 60).

Front

Are vertical angles always equal?

Back

Yes, vertical angles are always equal.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common vertex and a common side, but do not overlap.