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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:.
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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
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