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

Define a line in geometry.

Back

A line is a straight one-dimensional figure that extends infinitely in both directions.

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 are collinear points?

Back

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

Front

What is a plane in geometry?

Back

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

Front

What does it mean for two lines to intersect?

Back

Two lines intersect if they cross each other at a point.

Front

What is the intersection of a line and a plane?

Back

The intersection of a line and a plane is the point where they meet.

Front

Define a right angle.

Back

A right angle is an angle that measures exactly 90 degrees.

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.