Points Lines and Planes

Front

What is a line?

Back

A line is a straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

How many points are needed to define a line?

Back

Two points are needed to define a line.

Front

What is a plane?

Back

A plane is a flat surface made up of points that has two dimensions and extends without end.

Front

What does it mean for points to be collinear?

Back

Points are collinear if they lie on the same straight line.

Front

How is a line named?

Back

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

Front

What is a point in geometry?

Back

A point is a specific location in space that has no dimensions, represented by a dot.

Front

What is a ray?

Back

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

Front

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

Back

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

Front

What is the definition of collinear points?

Back

Collinear points are three or more points that lie on the same straight line.

Front

What is the relationship between points and planes?

Back

A plane is defined by at least three non-collinear points.