Points Lines and Planes

Front

What is a point in geometry?

Back

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

Front

How do you name a line in geometry?

Back

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

Front

What is a line segment?

Back

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

Front

What is a ray in geometry?

Back

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

Front

What is a plane in geometry?

Back

A plane is a flat surface made up of points that extends infinitely in two dimensions.

Front

How many points are needed to define a plane?

Back

Three non-collinear points are needed to define a plane.

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 two endpoints.

Front

What is the definition of collinear points?

Back

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

Front

What is the definition of coplanar points?

Back

Coplanar points are points that lie on the same plane.

Front

How do you represent a plane in a diagram?

Back

A plane is often represented by a parallelogram or a four-sided figure.