Math-Trig Sweep by Perim and Radius

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Given PERIMETER and RADIUS of an arc, returns the SWEEP. By Orso B. Schmid

{ Orso ***************************** }
{ given arc perimeter and radius, result is an arc sweep }
FUNCTION M_Trig_ArcSweepByLenRadius(arcLen, radius: REAL): REAL;
		{ arc perim / radius) }
		M_Trig_ArcSweepByLenRadius := Rad2Deg(arcLen / radius);