2/25/21 Angle Relationships

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 is the sum of angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

What are vertical angles?

Back

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

Front

If two angles are complementary and one angle measures 25 degrees, what is the measure of the other angle?

Back

The other angle measures 65 degrees (90 - 25 = 65).

Front

If two angles are supplementary and one angle measures 75 degrees, what is the measure of the other angle?

Back

The other angle measures 105 degrees (180 - 75 = 105).

Front

What is a linear pair of angles?

Back

A linear pair of angles are two adjacent angles that form a straight line, and their measures add up to 180 degrees.

Front

Find the missing angle if one angle measures 50 degrees and they are complementary.

Back

The missing angle measures 40 degrees (90 - 50 = 40).

Front

Find the missing angle if one angle measures 130 degrees and they are supplementary.

Back

The missing angle measures 50 degrees (180 - 130 = 50).