An interactive PowerPoint designed to introduce students to the basics of Polygons

1. POLYGONS
By: Amy Pickell
ED 205-08
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2. TABLE OF CONTENTS
Triangle

 Quadrilateral
 Pentagon
 Hexagon
 Heptagon
 Octagon
 Enneagon/Nonagon
 Decagon
 Resources
 About the Author
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3. A triangle is a polygon with

three vertices or corners, and
TRIANGLE three edges.
There are three main types of

triangles an obtuse, acute, and
right. An obtuse triangle has
one obtuse angle meaning the
angle has a degree measure
larger then 90 degrees. An
acute triangle has three acute
angles meaning the angles
have a degree measure less
than 90 degrees. A right triangle
has one right angle meaning
the angle has a degree
measure of 90 degrees.
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4. QUADRILATERAL
A quadrilateral is a

polygon with four
vertices or corners, and
four edges.
There are many different types of quadrilaterals. The

most recognized are squares and rectangles. A square
is a rectangle with four edges of the same length and
four 90 degree right angles. A rectangle is a four sided
quadrilateral with four 90 degree right angles.
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5. PENTAGON
A pentagon is any five sided polygon.

 The most commonly know pentagon would be the
Pentagon building. This is a building with five equal
sides in length.
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6. HEXAGON
A hexagon is a polygon with six vertices or corners and

six edges.
 A beehive has hexagonal shaped honeycombs, in order
to ensure that there are no gaps between any of the
honeycombs.
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7. HEPTAGON
A heptagon is a polygon with seven angles and

seven sides.
 A regular heptagon has seven equal sides and
seven equal angles.
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8. OCTAGON
An octagon is a polygon with eight sides.

 The most common octagon is the stop sign.
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9. ENNEAGON/NONAGON
A enneagon or nonagon is a nine sided polygon.

 A regular enneagon or nonagon has nine sides of
equal length and nine angles of the same degree.
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10. DECAGON
A decagon is a polygon with ten sides and ten

angles.
 A regular decagon has ten equal sides and all the
internal angles are of the same degree.
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11. RESOURCES
To find any of the information used in this interactive

PowerPoint…
http://www.mathleague.com/help/geometry/polygons.htm
http://www.mathsisfun.com/geometry/polygons.html
All pictures were found using PowerPoint Clip Art.

Rainbow polygon picture found at:
https://allencentre.wikispaces.com/file/view/polygons.gif
Nonagon swimming pool found at:
http://www.baptistryuk.com/images/nonagon_dec_1sm.jpg
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12. ABOUT THE AUTHOR
My name is Amy Pickell, I am currently a

sophomore at Grand Valley State University. I am
from a little town called Pinckney MI. I am majoring
in mathematics with an emphasis on secondary
education so that I can teach math at the high
school level. If you have any question or comments
on this interactive PowerPoint you can contact me
at my e-mail: alpickell@gmail.com. Thank you for
viewing this PowerPoint, I hope you enjoyed it!
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