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vanihba

  • 3 years ago

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....?

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  1. UnkleRhaukus
    • 3 years ago
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    |dw:1339588252672:dw|

  2. UnkleRhaukus
    • 3 years ago
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    |dw:1339588351191:dw|

  3. UnkleRhaukus
    • 3 years ago
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    |dw:1339588513946:dw|

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

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

  6. vanihba
    • 3 years ago
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    yup 10c3

  7. Ishaan94
    • 3 years ago
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    Thank you.

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