Understanding Points, Lines, and Planes Flashcards
What is a Point?
It has no size and only marks a location.
What is a Line?
A endless line that goes forever in two directions.
What is a Plane?
A flat surface that extends forever.
What are Collinear points?
Points that lie on the same line.
What are Coplanar points?
Points that lie on the same plane.
What is a Ray?
A part of a line that starts at a point and goes forever in one direction.
What are Opposite Rays?
Rays that have a common endpoint and form a line.
What is a Segment?
The part of a line consisting of two points and all points between them.
What is an Endpoint?
A point at the end of a segment or at the start of a Ray.
What is a Postulate/Axiom?
A statement that is accepted as true but doesn’t have proof.
What is an Intersection?
The set of all points that two or more figures have in common.
