Mathematics · Probability
There are 10 points placed uniformly along the perimeter of a circle. Let A and B be two points among these such that they form the endpoints of a diameter. If a triangle formed using three of these 10 points is chosen at random, what is the probability that it will lie completely on one side of AB, with the points A and B being included as two of its vertices?
- 116
- 215
- 312
- 4115✓
Correct answer
115
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