1. Daily Warm-Up Quiz 1.Name the same ray two different ways. T E A M 2.Draw the next picture/number in the picture pattern: “measure of line segment UP = 25” 3.Use geometric symbols to write “measure of line segment UP = 25” two different ways. 4.Define: collinear, coplanar, and parallel. 5.What are the components of a good definition?

2. 1.6 Defining Line and Angle Relationships During this lesson, you will:  Write good definitions of geometric figures  Draw and label diagrams for each new term

3. Now, work with your team members to write good definitions for each geometric term. We will summarize these in class before you add them (and illustrations) to your notebooks. TermDefinitionIllustration(s) Parallel Lines Perpendicular Lines Complementary Angles Supplementary Angles Vertical Angles Linear Pair of Angles Two or more coplanar lines which never intersect Two coplanar lines which intersect to form right angles Two angles whose sum measures 90 degrees Two angles whose sum measures 180 degrees Two angles which share a common vertex and whose sides are opposite rays Two angles which share a common vertex and ray with other rays which are opposite rays

4. Homework