The number of lines that can be formed from 12 points in a plane of which no three of them are collinear except 6 points lie on a line is? If anybody answer this question with correct process I will mark that answer as brainliest answer.Good luck!
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0
Answer:
12-6=646564394341**5/5/5*5
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4
Answer:
hello mate..
Step-by-step explanation:
Since no three points are collinear in the plane ,a triangle can be formed by selecting any three point. So total number of triangles = number of ways of selecting 3 points from the given set of points.
Therefore total number of triangles = 10C3 =(10)!/( 3!*7!) = (10*9*8)/(3*2*1) = 10*3*4 =120.
hope you get your answer....
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