Identify Lines 12/13 4A

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Front

What is a straight angle?

Back

An angle that is exactly 180 degrees.

Front

What is a line?

Back

A straight path that extends infinitely in both directions.

Front

What is a line segment?

Back

Part of a line that has two endpoints.

Front

What is a point?

Back

A specific location in space that has no size or dimension.

Front

What are perpendicular lines?

Back

Lines that intersect to form right angles.

Front

What are parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What is a ray?

Back

A part of a line that has one endpoint and extends infinitely in one direction.