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STAIR Project

Polygon Classification. By Dave Crispin. STAIR Project. ENTER. Polygon Classification. Welcome to the Polygon Classification Stand Alone Instructional Resource (StAIR). This StAIR will define several terms that are used to classify polygons. A five question quiz follows the lessons. Start.

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STAIR Project

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  1. Polygon Classification By Dave Crispin STAIR Project ENTER

  2. Polygon Classification Welcome to the Polygon Classification Stand Alone Instructional Resource (StAIR). This StAIR will define several terms that are used to classify polygons. A five question quiz follows the lessons. Start

  3. Polygon Classification Classification CONVEX CONCAVE EQUILATERAL EQUIANGULAR REGULAR BY SIDES QUIZ

  4. Classification of Polygons By Sides • Polygons are named by the number of sides it has. • 3 sides = triangle • 4 sides = quadrilateral • 5 sides = pentagon • 6 sides = hexagon • 7 sides = septagon • 8 sides = octagon • 9 sides = nonagon • 10 sides = decagon • 12 sides = dodecagon Examples

  5. Examples # of sides = 3 Triangle # of sides = 6 Hexagon # of sides = 5 Pentagon # of sides = 10 Decagon Go to Convex/Concave

  6. Convex and Concave A polygon is convex if no diagonals from any two vertices go outside the polygon. Convex A polygon is concave is any diagonal goes outside of the polygon. **An easy way to remember is concave looks like a cave. Concave Go to Equilateral/Equiangular/Regular

  7. Equilateral/Equiangular/Regular Equilateral – all sides are the same length. Equiangular – all angles have the same measure. Regular – both equilateral and equiangular. Examples

  8. Examples Equilateral – all sides are the same length. Equiangular – all angles are the same measure. Regular – all sides are the same length and all angles are the same measure.

  9. Quiz Instructions This quiz has five multiple choice questions. If, at any time, you want to go back to the lessons, then click on the “home” button. Click HERE to begin the quiz. Good luck!

  10. Quiz Question #1 Classify the polygon. Skip to Question #2 Convex Equilateral Pentagon Convex Equilateral Quadrilateral Convex Equiangular Quadrilateral Concave Equiangular Pentagon Concave Equilateral Quadrilateral

  11. Quiz Question #2 Classify the polygon. Go back to Question #1 Convex Equilateral Pentagon Convex Equilateral Hexagon Convex Regular Pentagon Concave Pentagon Concave Hexagon Skip to Question #3

  12. Quiz Question #3 Select the Convex Regular Pentagon Go back to Question #2 A. B. C. D. E. Skip to Question #4

  13. Quiz Question #4 Classify the polygon. Go back to Question #3 Convex Heptagon Convex Octagon Convex Nonagon Concave Heptagon Concave Nonagon Skip to Question #5

  14. Quiz Question #5 Select the Dodecagon. Go back to Question #4 A. B. C. D. E.

  15. Go to Question #2 Correct!

  16. Go to Question #3 Correct!

  17. Go to Question #4 Correct!

  18. Go to Question #5 Correct!

  19. End of Quiz Correct!

  20. Back to Question #1 Sorry, That was not right. Try again!

  21. Back to Question #2 Sorry, That was not right. Try again!

  22. Back to Question #3 Sorry, That was not right. Try again!

  23. Back to Question #4 Sorry, That was not right. Try again!

  24. Back to Question #5 Sorry, That was not right. Try again!

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