Length of an Arc Formula - Areas

Formula:

Length of Arc Image

r = (h/2) + (w2/(8h))
C = 2 tan-1(w/(2×(r-h)))
if(C < 0)
C = 360 + C
l = C × 2 Π r / 360


Where,

r = Radius of Arc
h = Height of Arc
w = Width of Arc
C = Center Angle of Arc
l = Length of Arc

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