Computation of the segments of a circular corona

Geometrical references
Version 1.0 - August 16, 1998

With reference to the figure at the side, you use the formula:

L2 = external_radium x tan(360°/2 x sections_number)

L1 = internal_radium x tan(360°/2 x sections_number)

A = external_radium - (internal_radium x cos(360°/2 x sections_number))

The following fields automatically compute the result. Beware that your browser has to support JavaScript.

Input Data Results
Number of needed sections N: High L2 in inches:
External radium in inches: Equivalent corner b in degrees:
Internal radium in inches:

Therefore you need to cut trapezoids having base of " and high of "