Download Presentation
## Warm up 8/28,29

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -

**Warm up 8/28,29**• On a scratch piece of paper answer the following questions • How can you tell if a network is traversable or not? • What are the undefined terms and why are they • used? • 3)Create a scenario where deductive reasoning is • used**1-1 Understanding Points, Lines and Planes**Objective Apply basic facts about points, lines, and planes.**Vocabulary**point collinear line coplanar plane endpoint segment postulate ray**K**L M N Points that lie on the same line are collinear. Example: K, L, and M are collinear. Points that do not lie on the same line are noncollinear. Example: K, L, and N are noncollinear.**Points that lie on the same plane are coplanar.**Otherwise they are noncoplanar.**Possible answer: AE, BE, CE**Example 1: Naming Points, Lines, and Planes A. Name four coplanar points. A, B, C, D B. Name three lines.**Postulate (axiom): a statement that is accepted as true**without proof**GH**Example 2: Identifying Points and Lines in a Plane Name a line. Name the plane using three noncollinear points. plane GHF If there was a point T in between G and H on line n, could we call the plane GTH, why or why not?**Remember: An intersection is the set of all points that two**or more figures have in common.**Example 3: Representing Intersections**A. Sketch two lines intersecting in exactly one point. B. Sketch a line that lies in a plane.**Example 3 (continued)**• Sketch a figure that shows two lines intersect at one point in a plane, but only one of the lines lies in the plane.**Skew Lines**Two or more noncoplanar lines that do not intersect but are not parallel. Name a pair of skew lines**Gallery Walk**Everything should be put away except for your Geometric Artwork.**Geometry in the World**Your assignment is to find five (5) real-world objects that illustrate the geometric figures. These images must be in your world, not taken from the internet.**Link**The top and bottom of the row of lockers are the two lines. The side of a stack of lockers is the transversal. Lockers in the B-Building Geometric Description Geometric Sketch C B Reflection This assignment helped me… I liked it because … One suggestion to improve this assignment is … A D E F