1. GEOMETRY

2. Polygons
Circles
Congruency
Similarity
Points Lines Planes
Geometry

3. •D •B •N Point A position in space, has no size only location
D, B and N represent points

4. Line AB represents a line Continues without end in opposite directions
• •
A B
AB represents a line

5. Segment DE represents a segment
Part of a line made up of 2 points and all the points of the line between the 2 points
• •
D E
DE represents a segment

6. Ray
Part of a line consisting of one endpoint and all the points of the line on one side of the endpoint
F G
FG represents a ray • •

7. What are parallel lines?
Parallel lines are lines that never intersect.

8. What are intersecting lines?
Lines that cross at any point are intersecting lines.

9. What are perpendicular lines?
Two lines that cross to form a right angle are intersecting lines.

11. Points and Lines in Real World

17. VERTEX A VERTEX is a fancy name for “angle”
Two rays or lines that have the same endpoint make a VERTEX/angle
VERTEX/angles are measured in “degrees”
When two lines cross, they make vertex/angles
The Corners of a square are its vertex/angles

18. The Hershey & Crunch Bar are a Congruent size
CONGRUENT means the “same”
CONGRUENT LINE SEGMENTS means two line segments are the same
CONGRUENT Vertex/Angles means two angles are the same ● ● ● ●
The Hershey & Crunch Bar are a Congruent size

19. Open your etextbook on page 33.