it depend upon the figure.only the can it be said that whether 9 lines can be made form 4 points.
Chat with our AI personalities
THe maximum number of lines that can be achieved between 9 points is 8+7+6+5+4+3+2+1=36.
parrellell
a nonagon
Groups are 11, 12, 1, 2; 3, 4, 9 and 10; 5, 6, 7 and 8 so you draw your lines: from between 2 and 3 to between 10 and 11 and from between 4 and 5 to between 8 and 9.
draw 9 lines and join them