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vanihba Group Title

Consider a regular decagon(equal 10 sided polygon), by joining the vertices, find the maximum no. of triangles that can be drawn, whose no side is a side of the decagon....?

  • 2 years ago
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  1. UnkleRhaukus Group Title
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    |dw:1339588252672:dw|

    • 2 years ago
  2. UnkleRhaukus Group Title
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    |dw:1339588351191:dw|

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  3. UnkleRhaukus Group Title
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    |dw:1339588513946:dw|

    • 2 years ago
  4. Ishaan94 Group Title
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    10 sides can serve as 10 bases for the triangle. Each base implies two points.\[10\cdot \binom{8}{1}\]?

    • 2 years ago
  5. Ishaan94 Group Title
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    \[\binom{10}{3}\]I just read the triangle can't have common side with the polygon

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  6. vanihba Group Title
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    yup 10c3

    • 2 years ago
  7. Ishaan94 Group Title
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    Thank you.

    • 2 years ago
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