Combinations
Probability
Level
2
The maximum number of points of intersection of 8 straight lines is:
The answer is 28.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
The maximum number of points we get when 8 lines congruent but not when 3lines are congruent is8C2
=8×7/2 =56/2 28