Day 1 Draw and label how you think the following would be drawn or labeled in a geometry book:

1. Day 1 Draw and label how you think the following would be drawn or labeled in a geometry book: Point Line Ray Segment Angle Triangle 1.1: Getting Started I can recognize points, lines, rays, segments, angles, and triangles. I can determine the difference between union and intersection.

2. What it looks like: How do we name it? A Use a CAPITAL letter to name points. These are points A, B, and C. B C Def: A point is a location in space

3. What it looks like: How do we name it? Use CAPITAL letters for the endpoints. A B Def: A line segment is a set of points with two endpoints.

4. What it looks like: How do we name it? Use CAPITAL letters with the beginning point followed by any other point. K O Def: A ray is a set of points with a beginning but no end.

5. What it looks like: How do we name it? • Use CAPITAL letters and any 2 points • Use a LOWER CASE CURSIVE letter T A C Def: A line is a set of points with no beginning or end

6. What it looks like: How do we name it? • Use three points with vertex at center • Use vertex • Use a number D O 1 G Def: An angle is a figure formed by two rays with a common endpoint. (vertex)

7. What it looks like: How do we name it? Use the three vertices to name a triangle. Name the triangle in all possible ways. G E O Def: A triangle is a three-sided polygon

8. Union Intersection • What happens when we put them together? • What do they have in common? Union and Intersection

9. means put the two rays together. This gives us ∠RAY • means what they have in common. A R A Y An example with union and intersection

10. Find the following D R S A W Your turn.

11. p. 7 #1-12, 14 Homework