Professor wrote:smac
you need 6.28 metres extra, not kilometres :
Apologies Prof,after a short inquiry, stewards have declared you to be the Winner. Sorry smac,you are relegated despite your excellent effort. When you calculated your new diameter you added 2 as kilometres not metres. Don't feel bad,my quizmaster credibilty is out the window again.
New Placings 1/ the Professor
2/ smac
3/ Magpie
All Clear