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 is a line defined in geometry?

Back

A line is defined as a straight path that extends infinitely in both directions and has no thickness.

Front

What is a plane in geometry?

Back

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

Front

How do you name a plane?

Back

A plane can be named by any three non-collinear points on the plane or by a lowercase script letter.

Front

What does it mean for points to be collinear?

Back

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

Front

How many points are needed to define a line?

Back

Two points are needed to define a line.

Front

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

Back

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

Front

What is the significance of a line's slope?

Back

The slope of a line indicates its steepness and direction, calculated as the rise over run.

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 parallel lines?

Back

Parallel lines are lines in a plane that never intersect and are always the same distance apart.