1. Notes 1.1
Points, Lines, & Planes

2. NEED TO KNOW….. Euclid - created geometry in flat space.
Hyperbolic Geometry – geometry that is rounded like an hyperbola.

3. Common Terms in Geometry

4. More Terms…..

5. Definitions Collinear – points that lie on the same line.
Noncollinear – Do Not lie on the same line.
Coplanar – points that lie on the same plane.
Noncoplanar – Do not lie on the same plane.

6. Postulates – Accepted as ALWAYS TRUE

7. EXAMPLES: 1. Two opposite rays. CB and CD 2. A point on BC.
Possible answer: D
3. The intersection of plane N and plane T.
Possible answer: BD
4. A plane containing E, D, and B.
Plane T

8. More Examples Draw each of the following.
5. a line intersecting a plane at one point
6. a ray with endpoint P that passes through Q