Adjacent, Vertical, Complementary, Supplementary Angles

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 are vertical angles?

Back

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

Front

What are adjacent angles?

Back

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

Front

Example of complementary angles?

Back

An example of complementary angles is 81° and 9°.

Front

Example of supplementary angles?

Back

An example of supplementary angles is 120° and 60°.

Front

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

Back

The measure of the complementary angle is 20°.

Front

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

Back

The measure of the supplementary angle is 70°.

Front

If two angles are vertical, what can we say about their measures?

Back

If two angles are vertical, their measures are equal.

Front

If angle C and angle D are adjacent and angle C measures 45°, what is the maximum measure angle D can have if they are supplementary?

Back

Angle D can have a maximum measure of 135°.