Polygons
- 1. Polygons What are they?
- 2. Polygons There are both irregular and regular polygons Polygons are shapes with a face, three or more sides and is a closed figure There are also polygons called convex and concave Polygons come in many different shapes Although polygons that are round like a circle (or shapes that do not have all straight lines) are not polygons
- 3. Regular Polygons Regular polygons have equal sides and angles all the way around Regular Triangle Irregular Polygons Irregular polygons have unequal sides although some irregular polygons have equal angles Irregular Heptagon Rectangle (irregular)
- 4. Triangle Pentagon Hexagon Heptagon Octagon Nonagon Decagon Undecagon Dodecagon Tridecagon Tetradecagon Pentadecagon Trapezoid Right Triangle Parallelogram Rectangle Regular Polygons Irregular Polygons s = sides 3 s 5 s 6 s 7 s 8 s 9 s 10 s 11 s 12 s 13 s 14 s 15 s 4 s 3 s 4 s 4 s
- 5. Concave Polygon Convex polygons are shapes that curve out of a usual shape (or just does not have a dent in it) Concave polygons are shapes that curve inward (if you can draw a straight line from inside one part of the shape going out of the shape then inside again to the other side, it is concave) Convex Polygon 1- regular triangle 2- irregular hexagon