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10 7 Polygons And Tessellations
 

10 7 Polygons And Tessellations

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    10 7 Polygons And Tessellations 10 7 Polygons And Tessellations Presentation Transcript

    • 10-7 Polygons and Tessellations Classify polygons and determine which polygons can form a tessellation.
    • Sort the pictures into polygons and not polygons.
    • T-table Not Polygons Polygons
    • P i c t u r e # of s i d e s decagon nonagon Octagon Heptagon Hexagon Pentagon Name
    • Regular Polygon—all sides and angles are congruent.
      • Draw some examples of regular and non-regular polygons
    • P 447 example 1 and 2
    • Your turn a and b
    • Angle measures
    • Example 3
    • Your turn c and d
    • TESSELLATIONS
      • A repetitive pattern of polygons that fit together with no overlaps or holes is called a tessellation.
      • http://library.thinkquest.org/16661/gather/gallery/index.html
      • Student creations: http://cte.jhu.edu/techacademy/web/2000/heal/tessellations.htm
    • The sum of the measure of the angles where the vertices meet in a tessellation is 360 degrees.
      • See top of page 448
    • Example 4
    • 3-2-1
      • Picture of 3 polygons with names
      • 2 definitions—regular and non-regular polygons
      • 1 real world example of a tessellation
    • Homework
      • P 448: 4, 5, 8-18, 21-24