In message , R D S
writes
"geoff" wrote in message
...
In message , Richard
writes
Given an equilateral triangle of side 185 mm, how do I calculate the
diameter or radius of the circle that intersects with the three corners of
the triangle?

My Zeus tables explain how to set up a drilling rig for a given diameter,
but not the reverse.

The formula would be helpful.

A link to a web site of such useful information would be wonderful!


You mean like typing

"diameter of a circle on an equilateral triangle"

into google ?

which yields various site such as this ...

http://mathworld.wolfram.com/EquilateralTriangle.html

Rocket science, eh ?

plonk

plonker ...

--
geoff