Question

How many lines can be drawn passing through 10 collinear points? * 1 10 3 6

Answer 1

Step-by-step explanation:

The number of ways to select any points (out of 10 distinct points) will be 10C2. Once we select the points, there is only 1 straight line which will be formed using these points. Therefore the number of lines will be 10C2 x 1 or 45.

Answer 2

☆ Answer ☆

In order to form a straight line you need 2 lines.

For that you have to select 2 points from a guven ser of points.

there are 10 C 2 ways of forming starighr line from 10 points if the no 3 points are collinear

10 C 2 = 10!/(2!×8!) = (10×9)/2= 45

Your Answer is 45.

hope this will help you...

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