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BrittanyLovesYou

  • 4 years ago

How many diagonals does a quadrilateral have? 1 2 3

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  1. brandonkramer
    • 4 years ago
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    2

  2. FoolForMath
    • 4 years ago
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    2

  3. FoolForMath
    • 4 years ago
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    In general \[\frac{n(n-3)}{2} \]

  4. atjari
    • 4 years ago
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    |dw:1331315455752:dw| 2

  5. BrittanyLovesYou
    • 4 years ago
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    thanks ;)))

  6. atjari
    • 4 years ago
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    yw

  7. siddhantsharan
    • 4 years ago
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    You can infact derieve that result FoolForMath gave using Combinatrix.

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