On Mon, 27 Jun 2005 13:32:38 GMT, "Leon"
wrote:


"Prometheus" wrote in message
.. .
On Sun, 26 Jun 2005 18:17:56 -0700, 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.

Pi (3.14) x diameter will give you the circumference. Divide that by
ten, and it's the number you need.

He does not want the circumference of the circle or the length of arc of
that segment. He wants the total width of that segment which is less than
the length of the arc.

That became apparent a little later in the thread. I was going to
throw the chord length in there, but I don't have a scientific
calculator handy, and I was too lazy to dig around on the net for the
value of sin(18)!

Of course, others nailed it, so there is no point in my posting it as
well.