Points, Line Segments, Lines, Rays, Angles

Front

What is a line?

Back

A straight path of points that goes on and on in two directions.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

A part of a line that has one endpoint and goes on forever in one direction.

Front

What is an angle?

Back

A figure formed by two rays with a common endpoint called the vertex.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a reflex angle?

Back

An angle that measures more than 180 degrees but less than 360 degrees.

Front

What is a point?

Back

An exact location in space with no size or dimension.