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1.2 Points, Lines, and Planes PowerPoint Presentation
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1.2 Points, Lines, and Planes

1.2 Points, Lines, and Planes

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1.2 Points, Lines, and Planes

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  1. 1.2 Points, Lines, and Planes Objective: Understand and use the basic terms and postulates of geometry.

  2. 1.2 Vocabulary • Point • Line • Plane • Collinear Points • Coplanar • Space • Segment • Ray • Opposite Rays • Postulate • Axiom • Intersection

  3. Remember y = mx + b ?

  4. Vocab Terms:

  5. Vocab Terms:

  6. Or BA or line l Or plane ABC

  7. 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?

  8. Compare and Contrast How is naming a ray similar to naming a line? How is it different?

  9. Naming Segments and Rays Can the three points shown on the line be used to name a plane? Explain.

  10. Vocab Terms: Intersection: set of points the figures have in common Postulate or axiom: an accepted statement of fact

  11. Postulate 1-1

  12. Postulate 1-2

  13. Postulate 1-3

  14. Postulate 1-4

  15. You Know How?