Can we draw the lines through a vertex like this?
More from Chalkdust
Dear Dirichlet, Issue 12
Books, business and barns are the topics readers have sent in to the professor's postbox this issue
Chalkdust issue 11 puzzle hunt #2
TD Dang sets the second puzzle. Can you solve it?
Christmas competition #3: ‘An eggnog mystery’
Lies, liquor and logical deduction play their part in this festive holiday tale
What is the point of intersection?
Elizabeth A Williams falls off a log
What’s hot and what’s not, Issue 06
Mathematical fashion advice for an ever-changing world
Which mathematician are you?
Behind today's door... a quiz!