vanihba
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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UnkleRhaukus
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UnkleRhaukus
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UnkleRhaukus
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Ishaan94
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10 sides can serve as 10 bases for the triangle. Each base implies two points.\[10\cdot \binom{8}{1}\]?
Ishaan94
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\[\binom{10}{3}\]I just read the triangle can't have common side with the polygon
vanihba
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yup 10c3
Ishaan94
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Thank you.