1 / 12

Geometry

Geometry. 1.2 Points, Lines and Planes. 1.2 Basic Vocabulary. Point has no size , but is represented by a dot . P all geometric figures consist of points. Line extends in 2 directions without ending has length, but no width or thickness

hyacinth-robertson
Télécharger la présentation

Geometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Geometry 1.2 Points, Lines and Planes

  2. 1.2 Basic Vocabulary • Point has no size , but is represented by a dot.P all geometric figures consist of points

  3. Line extends in 2 directions without ending has length, but no width or thickness (like a point, the picture is symbolic) Line d

  4. Plane extends in all directions without ending like a floor or a wall has length and width, but no thickness (like a point and line, the picture is symbolic) Plane K K

  5. In Geometry, the terms point, line and plane are • accepted as intuitive ideas • not defined • used in definitions of other terms

  6. Some More Definitions • Space the set of all points • Collinear points points all in one line • Noncollinear points points not in one line

  7. Still More • Coplanar points points all in one plane • Noncoplanar points points not all in one plane

  8. More about lines • The intersection of two lines is a ______________? Point

  9. More about planes • The intersection of two planes is a ______________? Line

  10. More about planes • The intersection of a plane and a line not on that plane is a ______________? Point

  11. Check for understanding • Turn to page 7 in your textbook • Examine the figures on the right side of the page • Let’s do Classroom Exercises (CE) #1-20 together (you have seen some of these before) Roll the dice!

  12. Homework 1B • P. 7 WE # 1-33 odd P. 10 #40-46 Even Look at Section 1.3 P. 14 #1-24 (4X) (1,4,8, etc…)

More Related