Hi Magyar .. whilst you're about I would like to thank you again for the quiz questions etc that you kindly forwarded to me last year. I have made good use of them and will be using the sheet of Dingbats as an add on to my next quiz on 31st March.
Best wishes (S)
Just to clarify why it is 48. Each side must be 60 metres long, if there is a post in each corner then for each side there must be an additional eleven posts at 5 metres apart.