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