Question

Help how do you do this question?

Answer 1

Answer:

here ur ans:-

Step-by-step explanation:

So there are 7 points.

To draw a line we need 2 points.

So the ways by which we chose 2 points from the 7 points are C(7,2).

C(7,2)= 7!/(7-2)!

=(7×6)/(2×1)

=42/2

=21

Therefore 21 such lines can be drawn

hope it help u mate

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