Try these sites, hope something here helps.

http://www.verifiedsoftware.com/goodturns/plans.htm
http://www.delorie.com/wood/segturn.html

"Burt" wrote in message
...

I can't remember the formula for the life of me.
If a dish is almost 3 ft across and I want to segment it like an orange
into 10
segments how do I calculate how wide each will be at the rim?
So I end up with a dish that has 10 sides.

I'm math clueless.