Geometry A 1.5 Angle Relationships

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If an angle measures 82°, what is its supplement?

Back

The supplement of an 82° angle is 98°.

Front

What are the sides of an angle?

Back

The sides of an angle are the rays that form the angle.

Front

What is the vertex of an angle?

Back

The vertex of an angle is the point where the two sides meet.

Front

How do you determine if an angle is a right angle?

Back

An angle is a right angle if it measures exactly 90 degrees.

Front

What is the relationship between complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.