Question

given 4 distinct points in a plane.how many lines can be drawn using them when no 3 of them are collinear​

Answer 1

Answer:

6 lines

Step-by-step explanation:

since a line can be drawn joining atleast two points ....these are the combinations selecting two out of 4

total lines : nCr : 4C2 :

4C2 = 4×3/2 = 6