Geo HW 1-5 Angle Relationships

Front

What are two angles that add up to 90 degrees called?

Back

Complementary angles.

Front

What are two angles that add up to 180 degrees called?

Back

Supplementary angles.

Front

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

Back

90 degrees.

Front

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

Back

180 degrees.

Front

What is the definition of collinear points?

Back

Points that lie on the same straight line.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

What is the equation to solve for x if two angles are complementary?

Back

Front

What is the equation to solve for x if two angles are supplementary?

Back

Front

What is the definition of adjacent angles?

Back

Angles that share a common side and vertex.

Front

What is the definition of a right angle?

Back

An angle that measures exactly 90 degrees.