Intro to Points, Lines and Planes

Front

What are coplanar points?

Back

Coplanar points are points that lie on the same plane.

Front

What is another name for plane Q?

Back

Plane Q can be referred to by any of its defining points, such as Plane FGI.

Front

How is a line named?

Back

A line is named by any two points on the line or by a lowercase script letter.

Front

What does it mean for points to be collinear?

Back

Collinear points are points that lie on the same straight line.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has a fixed length with two endpoints.

Front

What is a ray?

Back

A ray is a part of a line that starts at one point and extends infinitely in one direction.

Front

What are parallel lines?

Back

Parallel lines are lines in the same plane that never intersect.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is a plane in geometry?

Back

A plane is a flat, two-dimensional surface that extends infinitely in all directions.