Upcoming SlideShare
×

# Polygon Notes

9,750 views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
Your message goes here
• Nice

Are you sure you want to  Yes  No
Your message goes here
• good

Are you sure you want to  Yes  No
Your message goes here
• woo!!!!

Are you sure you want to  Yes  No
Your message goes here
• Be the first to like this

Views
Total views
9,750
On SlideShare
0
From Embeds
0
Number of Embeds
33
Actions
Shares
0
175
3
Likes
0
Embeds 0
No embeds

No notes for slide

### Polygon Notes

1. 1. Polygons
2. 2. What is a Polygon???? Any ideas? Write down what you think it is for #1.
3. 3. A polygon is a closed plane figure with 3 or more sides (all straight lines, no curves).
4. 4. Classifying Polygons by # of Sides 3 sided Polygon = Triangle Hint: Think “Tri”cycle, “tri”pod, “Tri”lateration (Tri means 3)
5. 5. Classifying Polygons by # of Sides 4 sided Polygon = Quadrilateral Hint: Think “Quad”rant, “Quad”ruple, “Quad” (AKA 4-Wheeler)
6. 6. Classifying Polygons by # of Sides 5 sided Polygon = Pentagon Hint: Think “Pent”athalon, or the government building “The Pentagon”
7. 7. Classifying Polygons by # of Sides 6 sided Polygon = Hexagon Hint: Both “Hexagon” and “Six” have an ‘x’ in them
8. 8. Classifying Polygons by # of Sides 7 sided Polygon = Heptagon Hint: ???
9. 9. Classifying Polygons by # of Sides 8 sided Polygon = Octagon Hint: “oct”opus – 8 legs
10. 10. Classifying Polygons by # of Sides 9 sided Polygon = Nonagon Hint: “Non” is similar to “Nine”
11. 11. Classifying Polygons by # of Sides 10 sided Polygon = Decagon Hint: Think “Dec”ade (10 years
12. 12. Classifying Polygons by # of Sides 11 sided Polygon = Hendecagon Hint: ???
13. 13. Classifying Polygons by # of Sides 12 sided Polygon = Dodecagon Hint: ???
14. 14. Classifying Polygons by # of Sides Q: What do we call a polygon with more than 12 sides? A: An ‘n’-gon where ‘n’ is the number of sides Ex: a 20 sided polygon is a 20-gon
15. 15. Classifying Polygons by # of Sides # of Sides Name 3 Triangle 4 Quadrilateral 5 Pentagon 6 Hexagon 7 Heptagon 8 Octagon 9 Nonagon 10 Decagon 11 Hendecagon 12 Dodecagon
16. 16. Two Types of Polygons Convex – all vertices point outward Concave – at least one vertex points inward towards the center of the polygon (The side looks like it “caved” in)
17. 17. Regular Polygons A Regular Polygon is a polygon in which all sides are the same length. Equilateral Triangle   Square
18. 18. Review of Similar Triangles • 2 Triangles are similar if they have the same shape (i.e. the same angle in the same positions)
19. 19. Similar Polygons The same is true of polygons. 2 polygons are similar if they have the same angles in the same positions (i.e. same shape) and the sides are proportional. ^ Similar Pentagons ^ Similar Trapezoids  Similar Rectangles 