1.2 Points, Lines, and Planes Objective: Understand and use the basic terms and postulates of geometry.
1.2 Vocabulary Point Line Plane Collinear Points Coplanar Space Segment Ray Opposite Rays Postulate Axiom Intersection
Remember y = mx + b ?
Vocab Terms:
Vocab Terms:
Or BA or line l Or plane ABC
Naming Points, Lines, and Planes How can you tell that the label P is naming a plane instead of a point? Why is plane RQS not a valid name for the plane? What point(s) do lines l and m have in common?
Compare and Contrast How is naming a ray similar to naming a line? How is it different?
Naming Segments and Rays Can the three points shown on the line be used to name a plane? Explain.
Vocab Terms: Intersection: set of points the figures have in common Postulate or axiom: an accepted statement of fact
Postulate 1-1
Postulate 1-2
Postulate 1-3
Postulate 1-4
You Know How?