Burt wrote:

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.

perimeter = pi * diameter = 3.1415926 * 3 = 9.42478 ft

Or, just measure around and divide by 10...