Refer this....

http://www.daniweb.com/forums/thread190878.html

Sorry
I have reedited my post but i dont know why, my corrections were missing....here once again i am giving the formula....

If you have two co-ordinates say X(x1,x2); Y(y1,y2)....
then the...

Your are trying to say:
you are trying to find the length in this way
I then use the equation p2.x - p1.x to get l1 (length 1).
I then use the equation p3.x - p1.x to get l2 (length 2).

So then...

Hi jagdeep89
Do you this some one here will be ready with their sys to post solution for the work assigned to you.

Come on:
Post your code, if there is any doubt or correction needed, with...

The logic behind the problem(which is described) is rubbish.

If the user entered number is negative, the problem is should be dealt with the concept of Complex Numbers.

I think you have...