1 / 11

Undefined Terms and Definitions

Undefined Terms and Definitions. Undefined Terms. Point simply a location represented by a dot named with a capital letter no shape no size. Undefined Terms (cont.). Line made up of points no thickness or width drawn with an arrowhead at each end

tracey
Télécharger la présentation

Undefined Terms and Definitions

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. Undefined Terms and Definitions

  2. Undefined Terms Point • simply a location • represented by a dot • named with a capital letter • no shape • no size

  3. Undefined Terms (cont.) Line • made up of points • no thickness or width • drawn with an arrowhead at each end • named by the letters representing two points on the line or by a lowercase script letter • has symbol in label above two letters SL or LS

  4. Undefined Terms (cont.) Plane • flat surface made up of points • no depth • extends infinitely in all directions • drawn as a shaded, slanted four-sided figure • named by a capital script letter or by the letters naming three points in the plane that are not on the same line

  5. Definitions (cont.) Collinear - points on the same line Coplanar - points that lie on the same plane Intersection – The point(s) in common among figures Space – A boundless three-dimensional set of all points.Space can contain lines and planes. Locus – A set of points that all satisfy a particular condition.

  6. Use the figure to name each of the following. a. a line containing point X Answer: line c, b. a plane containing point Z Example 1-1d Answer: plane P, plane XYZ, plane ZYX, plane YZX, plane XZY, plane ZXY, plane YXZ

  7. VISUALIZATION Name the geometric shape modeled by each object. a. a colored dot on a map used to mark the location of a city b. the ceiling of your classroom Example 1-2d Answer: point Answer: plane

  8. Example 1-4e a. How many planes appear in this figure? Answer: two

  9. Example 1-4f b. Name three points that are collinear. Sample answer:A, X, and Z

  10. Example 1-4g c. Are points X, O, and R coplanar? Explain. Answer: Points X, O, and R all lie in plane T, so they are coplanar.

  11. d. At what point do and intersect? Example 1-4h Answer:R

More Related