Chapter 1.6 Two Dimensional Figures. Concept Polygon vs. Non Polygon Polygons Non Polygons.
Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you...
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Transcript of Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you...
![Page 1: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/1.jpg)
Polygons
Brought to you by Cavis for President
![Page 2: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/2.jpg)
What is a Polygon????
Any ideas?
Write down what you think it is for #1.
![Page 3: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/3.jpg)
A polygon is a closed plane figure with 3 or more sides (all straight lines, no curves).
![Page 4: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/4.jpg)
Classifying Polygons by # of Sides
3 sided Polygon =
Triangle
Hint: Think “Tri”cycle, “tri”pod, “Tri”lateration (Tri means 3)
![Page 5: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/5.jpg)
Classifying Polygons by # of Sides
4 sided Polygon =
Quadrilateral
Hint: Think “Quad”rant, “Quad”ruple, “Quad” (AKA 4-Wheeler)
![Page 6: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/6.jpg)
Classifying Polygons by # of Sides
5 sided Polygon =
Pentagon
Hint: Think “Pent”athalon, or the government building “The Pentagon”
![Page 7: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/7.jpg)
Classifying Polygons by # of Sides
6 sided Polygon =
Hexagon
Hint: Both “Hexagon” and “Six” have an ‘x’ in them
![Page 8: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/8.jpg)
Classifying Polygons by # of Sides
7 sided Polygon =
Heptagon
Hint: ???
![Page 9: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/9.jpg)
Classifying Polygons by # of Sides
8 sided Polygon =
Octagon
Hint: “oct”opus – 8 legs
![Page 10: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/10.jpg)
Classifying Polygons by # of Sides
9 sided Polygon =
Nonagon
Hint: “Non” is similar to “Nine”
![Page 11: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/11.jpg)
Classifying Polygons by # of Sides
10 sided Polygon =
Decagon
Hint: Think “Dec”ade (10 years
![Page 12: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/12.jpg)
Classifying Polygons by # of Sides
11 sided Polygon =
Hendecagon
Hint: ???
![Page 13: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/13.jpg)
Classifying Polygons by # of Sides
12 sided Polygon =
Dodecagon
Hint: ???
![Page 14: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/14.jpg)
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
![Page 15: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/15.jpg)
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
![Page 16: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/16.jpg)
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)
![Page 17: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/17.jpg)
Regular Polygons
A Regular Polygon is a polygon in which all sides are the same length.
Equilateral Triangle Square
![Page 18: Polygons Brought to you by Cavis for President. What is a Polygon???? Any ideas? Write down what you think it is for #1.](https://reader036.fdocuments.us/reader036/viewer/2022070308/551bf4ef5503469e4f8b45f6/html5/thumbnails/18.jpg)
Review of Similar Triangles
• 2 Triangles are similar if they have the same shape (i.e. the same angle in the same positions)
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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