Lines, Line Segments, Rays, and Angles

Front

What is a vertex?

Back

It is a corner or a point where lines meet.

Front

What is a line?

Back

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

Front

What is a polygon?

Back

A closed plane figure made up of line segments.

Front

What is a ray?

Back

Part of a line with 1 end point and goes on forever.

Front

What is a point?

Back

An exact location.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What are parallel lines?

Back

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

Front

What is an angle?

Back

The space between two intersecting lines measured in degrees.

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.