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

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- 1. POLYGONS By: Amy Pickell ED 205-08 Exit
- 2. TABLE OF CONTENTS Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Enneagon/Nonagon Decagon Resources About the Author Exit
- 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. Exit
- 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. Exit
- 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. Exit
- 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. Exit
- 7. HEPTAGON A heptagon is a polygon with seven angles and seven sides. A regular heptagon has seven equal sides and seven equal angles. Exit
- 8. OCTAGON An octagon is a polygon with eight sides. The most common octagon is the stop sign. Exit
- 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. Exit
- 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. Exit
- 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 Exit
- 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! Exit

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