Diagonals & Vertices<br />11/20/09<br />EQ: How can I tell how many diagonals a polygon has by counting its sides or verti...
Review:<br />Diagonal?<br />Line of symmetry?<br />Line segment?<br />Side?<br />
Review:<br />Vertex?<br />Vertices?<br />How do you write the name of a line segment?<br />
Review:<br />How many diagonals in quadrilaterals?<br />What do know about diagonals in quadrilaterals?<br />
Make a t-chart.<br />Column 1: # of sides<br />Column 2: # of diagonals from 1 vertex<br />
Hand out shapes.<br />Draw diagonals from one vertex.<br />Fill in chart.<br />
Hand out shapes.<br />Draw diagonals from one vertex.<br />Fill in chart.<br />What is the rule?<br />
Draw a new t chart<br />Column 1: # of sides<br />Column 2: # of total diagonals<br />
Draw diagonals from one vertex at a time.<br />Fill in chart.<br />What is the rule?<br />Read the line segments. <br />
EQ: How can I tell how many diagonals a polygon has by counting its sides or vertices?<br />
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2 12 Diagonals & Vertices

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2 12 Diagonals & Vertices

  1. 1. Diagonals & Vertices<br />11/20/09<br />EQ: How can I tell how many diagonals a polygon has by counting its sides or vertices?<br />
  2. 2. Review:<br />Diagonal?<br />Line of symmetry?<br />Line segment?<br />Side?<br />
  3. 3. Review:<br />Vertex?<br />Vertices?<br />How do you write the name of a line segment?<br />
  4. 4. Review:<br />How many diagonals in quadrilaterals?<br />What do know about diagonals in quadrilaterals?<br />
  5. 5. Make a t-chart.<br />Column 1: # of sides<br />Column 2: # of diagonals from 1 vertex<br />
  6. 6. Hand out shapes.<br />Draw diagonals from one vertex.<br />Fill in chart.<br />
  7. 7. Hand out shapes.<br />Draw diagonals from one vertex.<br />Fill in chart.<br />What is the rule?<br />
  8. 8. Draw a new t chart<br />Column 1: # of sides<br />Column 2: # of total diagonals<br />
  9. 9. Draw diagonals from one vertex at a time.<br />Fill in chart.<br />What is the rule?<br />Read the line segments. <br />
  10. 10. EQ: How can I tell how many diagonals a polygon has by counting its sides or vertices?<br />

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