Areas and Dimensions of a Circular Segment

To find the area of a circular segment you must enter data in the r, a and c fields, the L, c, and h fields or the r, L, and c fields.
a
r
L
c
h


Area =  

Formulas:

A = Area
a = angle, in degrees
r = radius
L = length of arc
h = height of segment
c = width of segment
A = ½[(r * L) - c(r - h)]
c =
r = (c2 + (4 * h2)) ÷ (8 * h)
L = 0.01745 * r * a
h =
a = 57.296 * L ÷ r
h = r[L - cos(a ÷ 2)]

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