Answer:
Step-by-step explanation:
Given that there are four points and we have to find the number of permutations of two points from a set of four points
No of permutations = 4P2 = 12
Line segments that can be drawn between any two points from given 4 points would be
4C2 =6 because line segment from A to B would be the same as B to A
i.e. order does not matter.
Thus no of line segments are combinations while permutations represent vectors where direction matters and they are 12.
Line segments are half of total vectors
