Polygon Notes
Upcoming SlideShare
Loading in...5
×
 

Polygon Notes

on

  • 2,802 views

 

Statistics

Views

Total Views
2,802
Views on SlideShare
2,798
Embed Views
4

Actions

Likes
3
Downloads
42
Comments
0

2 Embeds 4

http://moodle.sccresa.org 2
http://www.slideshare.net 2

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Polygon Notes Polygon Notes Presentation Transcript

    • Polygons Brought to you by Cavis for President
    • What is a Polygon???? Any ideas? Write down what you think it is for #1.
    • A polygon is a closed plane figure with 3 or more sides (all straight lines, no curves).
    • Classifying Polygons by # of Sides 3 sided Polygon = Triangle Hint: Think “Tri”cycle, “tri”pod, “Tri”lateration (Tri means 3)
    • Classifying Polygons by # of Sides 4 sided Polygon = Quadrilateral Hint: Think “Quad”rant, “Quad”ruple, “Quad” (AKA 4-Wheeler)
    • Classifying Polygons by # of Sides 5 sided Polygon = Pentagon Hint: Think “Pent”athalon, or the government building “The Pentagon”
    • Classifying Polygons by # of Sides 6 sided Polygon = Hexagon Hint: Both “Hexagon” and “Six” have an ‘x’ in them
    • Classifying Polygons by # of Sides 7 sided Polygon = Heptagon Hint: ???
    • Classifying Polygons by # of Sides 8 sided Polygon = Octagon Hint: “oct”opus – 8 legs
    • Classifying Polygons by # of Sides 9 sided Polygon = Nonagon Hint: “Non” is similar to “Nine”
    • Classifying Polygons by # of Sides 10 sided Polygon = Decagon Hint: Think “Dec”ade (10 years
    • Classifying Polygons by # of Sides 11 sided Polygon = Hendecagon Hint: ???
    • Classifying Polygons by # of Sides 12 sided Polygon = Dodecagon Hint: ???
    • 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
    • Classifying Polygons by # of Sides Dodecagon 12 Hendecagon 11 Decagon 10 Nonagon 9 Octagon 8 Heptagon 7 Hexagon 6 Pentagon 5 Quadrilateral 4 Triangle 3 Name # of Sides
    • 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)
    • Regular Polygons A Regular Polygon is a polygon in which all sides are the same length. Equilateral Triangle   Square
    • Review of Similar Triangles • 2 Triangles are similar if they have the same shape (i.e. the same angle in the same positions)
    • 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) ^ Similar Pentagons ^ Similar Trapezoids  Similar Rectangles 