We determine the minimum number of points which can be used to define a unique triangle, given that the points all lie on the triangle.
00:00 Intro
00:42 Posing the problem
01:59 Constructing examples
03:00 What about 5?
04:07 Idea for the proof
04:49 3 points on vertices
07:07 2 points on vertices
10:31 1 point on vertices
14:12 0 points on vertices
15:13 Conclusion
