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## Determine if a figure is a polygon. (0406.4.5)

1. Creating Polygons - investigating the Concept of Triangle and the Properties of Polygons (from NCTM) [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
2. Exterior Angles of Polygons - explanation and examples from Math is Fun, links to five questions at the bottom of the page
3. Figures and Polygons - click on a name to see an example of the polygon
4. Identify Polygons - names of polygons by number of sides and angles - instruction and review, practice, and a quiz and
5. Interior Angles of Polygons - explanation and examples from Math is Fun, links to seven questions at the bottom of the page
6. Parallelogram Song - A catchy song that helps students identify this polygon.
7. Polygon - definition and examples from Math is Fun, links to seven questions at the bottom of the page
8. Polygon - Wikipedia article with examples
9. Polygon Basics - introduction, in-depth explanation, examples, and a page of true-false questions
10. Polygon Game - read the tips before you begin the game
11. Polygon Matching Game - Do you know the difference between a rhombus and a square? How about a trapezoid and a parallelogram? Learn all the common polygons by playing this fun, timed matching game.
12. Polygon Playground - arrange designs with online movable polygons - hundreds of polygons to drag anywhere you want
13. Polygon Properties - a list of the most common polygons, this page also includes a list of some less common polygons, like the Myriagon with 10,000 sides
14. Polygons - some of the more commonly used polygons
15. Regular 2-D Shapes: Polygons - ten regular polygons, links to four questions are at the bottom of the page
16. Sorting Polygons - Students identify and classify polygons according to various attributes. They then sort the polygons in Venn Diagrams, according to these attributes. [from Illuminations]

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