Points, Lines, and Planes

Front

What is a Line Segment?

Back

A line segment is a part of a line that is bounded by two distinct endpoints. It has a definite length.

Front

What is the intersection of two lines?

Back

The intersection of two lines is the point where they meet or cross each other.

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

Define a Plane in geometry.

Back

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

Front

What is the intersection of a line and a plane?

Back

The intersection of a line and a plane is either a point (if they intersect) or the line lies entirely in the plane.

Front

What are opposite rays?

Back

Opposite rays are two rays that share the same endpoint and extend in opposite directions.

Front

What is a Right Angle?

Back

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

Front

How do you denote a line?

Back

Front

What is the notation for a ray?

Back

A ray is denoted by its endpoint and another point on the ray, such as @@ ightarrow{AB}@@.

Front

What is the intersection of two planes?

Back

The intersection of two planes is a line.