If-you-have-n-non-parallel-lines-in-a-plane-how-many-points-of-intersection-are-there-

Question Number 2621 by Yozzi last updated on 23/Nov/15

I f y o u h a v e n n o n - p a r a l l e l

l i n e s i n a p l a n e, h o w m a n y p o i n t s

o f i n t e r s e c t i o n a r e t h e r e ?

Answered by prakash jain last updated on 23/Nov/15

Choose any 2 lines and we get point of

intersection . Choosing 2 lines from n =^{n} C_{2 .}

Assuming 3 or more {don}^{'} t have a common

intersection point .