Naming and Parts of Angles Review

Front

What does angle ABC represent?

Back

Angle ABC is a geometric figure formed by two rays (BA and BC) that share a common endpoint (B).

Front

What type of angle is less than 90 degrees?

Back

An acute angle.

Front

What are the sides of the angle formed by rays YX and YZ?

Back

Ray YX and Ray YZ.

Front

An obtuse angle is an angle that is _______ a 90 degree angle.

Back

more than a 90 degree angle.

Front

What type of angle is exactly 90 degrees?

Back

A right angle.

Front

What is the term for an angle that is greater than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

What do you call an angle that measures exactly 180 degrees?

Back

A straight angle.

Front

What is the term for angles that add up to 90 degrees?

Back

Complementary angles.

Front

What is the term for angles that add up to 180 degrees?

Back

Supplementary angles.

Front

What is the vertex of an angle?

Back

The common endpoint of the two rays that form the angle.