The area = A = pi * (R * R - r * r), where pi = 3.14159... , R is outer radius, r is inner radius.
For width = w, length = L: A = w * L L = A /w. I believe the above to be corrrect. Gordon At 12:08 PM 8/27/98 -0400, [EMAIL PROTECTED] wrote: >Does anyone know how to figure the length of a spiral line, given only the >width between the lines and the diameter. or the radii of the circle Gordon Uber [EMAIL PROTECTED] 3790 El Camino Real, Suite 142, Palo Alto, CA 94306 Reynen & Uber Web Design http://www.ubr.com/rey&ubr/ Webmaster: Clocks and Time http://www.ubr.com/clocks/
