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CPM Geomety Unit 9 D1&2

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This PPT explains how to name various polygons and also explains how to find the angles of polygons

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Unit 9 Day 1 & 2
Polygons ,[object Object]
Polygons ,[object Object]
Polygon ,[object Object],[object Object],Polygon or not?
Names of Polygons Number of Sides Name of Polygon 3 4 5 6 7 8 9 10 11 n Number of Sides Name of Polygon Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Nonagon Decagon 11-gon n-gon
US – 2 Summary
Convex Concave ,[object Object],[object Object]
Regular Polygon ,[object Object],[object Object]
Find the sum of the interior angles of a 100-gon. ,[object Object],[object Object],[object Object]
Formula to find an angle of a regular n-gon.
Practice ,[object Object],[object Object]
Working backwards ,[object Object]
Find the number of sides ,[object Object],[object Object],[object Object]
Homework US 8, 9, 21, 22, 24, 25

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CPM Geomety Unit 9 D1&2

  • 1. Unit 9 Day 1 & 2
  • 2.
  • 3.
  • 4.
  • 5. Names of Polygons Number of Sides Name of Polygon 3 4 5 6 7 8 9 10 11 n Number of Sides Name of Polygon Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Nonagon Decagon 11-gon n-gon
  • 6. US – 2 Summary
  • 7.
  • 8.
  • 9.
  • 10. Formula to find an angle of a regular n-gon.
  • 11.
  • 12.
  • 13.
  • 14. Homework US 8, 9, 21, 22, 24, 25