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. It is usually represented by a dot and labeled with a capital letter.

Front

What is a line in geometry?

Back

A line is a straight one-dimensional figure that extends infinitely in both directions. It has no endpoints and is usually represented by two points on the line.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints. It is the shortest distance between those two points.

Front

What is a ray in geometry?

Back

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

Front

What does it mean for points to be collinear?

Back

Points are collinear if they 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. It is defined by three non-collinear points.

Front

What is the intersection of two planes?

Back

The intersection of two planes is a line.

Front

What is the intersection of a line and a plane?

Back

The intersection of a line and a plane is a point, provided the line is not parallel to the plane.

Front

What is a right angle?

Back

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

Front

What is the notation for a line segment between points A and B?

Back