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  • 1. 1.6 Classify Polygons August 22, 2011 Bellwork 1. What are complementary angles? sum = 90 degrees 2. m   JLM? M 105 15 L 105 + 15 = 120 J 3. Given that   3 is a supplement of    4 and m   3=119 , find m   4. 4. Name a pair of vertical angles. 180 ­ 119 = 61 2 1 1,4; 2,5; 3,6 3 6 4 5 5. Did you know that you may use your notes on Bellwork? Yes you may!HW pg. 44 #3­29 odds 1
  • 2. 1.6 Classify Polygons August 22, 2011 1.6 Classify Polygons Polygon: closed figure w/                  1. formed by 3 or more sides                  2. each side intersects exactly 2 sides at each endpoint                      (no collinear points)  Naming a polygon: list the vertices in consecutive order A B D Vertex C E Identifying a polygon:  Convex: no line contains    Concave: a line contains a  a point in the interior  vs. point in the interior of                of the polygon the polygon.HW pg. 44 #3­29 odds 2
  • 3. 1.6 Classify Polygons August 22, 2011HW pg. 44 #3­29 odds 3
  • 4. 1.6 Classify Polygons August 22, 2011 Classifying Polygons 3 4 5 6 10 Triangle Quadrilateral Pentagon Hexagon Decagon n­gon: n is the number of sides Equilateral: all sides ≅ Equiangular: all angles in interior are ≅ Regular: covex, equilateral & equiangularHW pg. 44 #3­29 odds 4
  • 5. 1.6 Classify Polygons August 22, 2011HW pg. 44 #3­29 odds 5
  • 6. 1.6 Classify Polygons August 22, 2011HW pg. 44 #3­29 odds 6
  • 7. 1.6 Classify Polygons August 22, 2011HW pg. 44 #3­29 odds 7
  • 8. 1.6 Classify Polygons August 22, 2011 HW: pg. 44 #3­29 oddsHW pg. 44 #3­29 odds 8