Combinatoricshard
0:00.0
Consider a set of points on a circle. If the number of ways to choose 4 points to form a convex quadrilateral is equal to the number of ways to choose 3 points to form a triangle, how many points are in the set?
Consider a set of points on a circle. If the number of ways to choose 4 points to form a convex quadrilateral is equal to the number of ways to choose 3 points to form a triangle, how many points are in the set?