1. Chapter 1.1 Building Your Geometry Portfolio

2. “Undefined” Terms Point – an exact location Line – never ending straight path Segment – 2 endpoints and all the points between Ray – never ending path in ONE direction Angle – 2 rays with a common endpoint Plane – never ending flat surface

3. Point Represented by: a dot Labeled with: Capital Letter Written Notation: point A or A A C B

4. Represented by: a line with arrows at each end Labeled with: 2 Capital Letters or a lower case cursive letter Written Notation: Line l A B Line l AB

5. Segment Represented by: 2 dots and a connecting line Labeled with: 2 Capital Letter Written Notation: AB A B C D

6. Ray Represented by: an endpoint and an arrow Labeled with: 2 Capital Letters Written Notation: FG ML F G M L

7. Angle Represented by: 2 rays Labeled with: 3 points or the vertex Written Notation: <F, <HFG, or <GFH The Vertex is the common endpoint The Sides are the rays F G H

8. Plane Represented by: a parallelogram Labeled with: Capital Cursive Letter or 3 non-colinear points Written Notation: plane N or M N L M

9. Other terms Intersect – lines, planes, lines & planes Collinear Non-collinear Coplanar Non-coplanar Midpoint