The answer depends on how many points there are and how many triplets are non-collinear.
Infinitely many planes may contain the same three collinear points if the planes all intersect at the same line.
There are an infinite number of any kind of points in any plane. But once you have three ( 3 ) non-collinear points, you know exactly which plane they're in, because there's no other plane that contains the same three non-collinear points.
5 triangles are formed.
5 equilateral triangles.
The answer depends on how many points there are and how many triplets are non-collinear.
21
One! That is what collinear means!
10 collinear points form one set of overlapping line segments, of which there are 45.
3
The geometric shape formed by connecting the perimeter of five points is a pentagon. Its basic construction is that of three triangles with one triangle in the middle sharing two of its sides with a base line of the other two triangles. The maximum number of triangles that can be created, if you count only those triangles that are formed by line segments between each of the five points, are ten (10).
84
Only one if they are non-collinear. An infinite number if they are collinear.
Three
Infinitely many planes may contain the same three collinear points if the planes all intersect at the same line.
There are an infinite number of any kind of points in any plane. But once you have three ( 3 ) non-collinear points, you know exactly which plane they're in, because there's no other plane that contains the same three non-collinear points.
two points form a line one more point is needed to check whether it is collinear or not so atleast three points must be require to check the non collinerancy of a points