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15 votes
15. Consider any eight points such that no three are collinear.
How many lines are determined?

User Angad
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1 Answer

10 votes
ANSWER

28




Step-by-step explanation

there are 8 points of Vishnu three of them are collinear how many lines to the point determine so basically the question mean firstly understand what collinearity mean it means that the points lie in a line so if there are three point if they are collinear it means that they will and makeup one straight line is that no three of them are collinear which means that only two points are collinear not 2.52 be collinear the call through any two points I will it take any two points makes it take this and their straight line is meant to pass through them a straight line always passes through two points at least so we just have to find the total number of the combination of two points which would be taken out from the

combination of eight lines which are there 8.40 so basically we have to find a 32 bit to means the total combination of the two points which are there from the 8.2 it will be 8 factorial upon to factorial in Two States factorial which would give us 56 / to which will be 28586 / to which comes out to be 28 always remember at a point passes through at least two point 1 arbitrarily any two points and a line in is definitely passing through them this is the concept of line and so see which is the option 28 becomes our answer
User DaveP
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