Reconstruct a diagram where 10 straight lines, of finite length, form 12 intersections, viz:

Intersections by
formed Lines
7 2
4 3
1 4

Describe this relatively simple arrangement.
The problem as stated does not, in my opinion, explain how to count the lines and/or segments.
I was further confused when I asked if a cross would be considered an "intersection of 2 lines or of 4 lines"; I misunderstood your answer of "two lines crossing result in 4 segments" as being "4". But it is really "two lines".
From the ascii sketch I can now see the definitions:
So a plus sign, for example, is 2 lines making 1 intersection.
A capital letter "K" is considered 3 lines making 1 intersection.

Posted by Larry
on 20131217 03:25:56 