Areas and Dimensions of a Circular Sector

Enter data in two of the following fields. You may also enter data in the Area field.
a
r
L


Area =  

Formulas:

A = Area
a = angle, in degrees
r = radius
L = length of arc
A = ½ * r * L
A = 0.008728 * a * r2
L = (r * a * 3.1416) ÷ 180
L = 0.008727 * r * a
L = (2A ÷ r)
a = 57.296L ÷ r
r = (2A ÷ L)
r = 57.296L ÷ a

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