How to find radius of an arc or segment?

by sithurajkumar 2011-08-06 12:32:15

How to find radius of an arc or segment?

The radius of an arc or segment is the radius of the circle of which it is a part. A formula is provided below for the radius given the width and height of the arc.

The formula for the radius is:
radius-arc.gif
arc-formula.gif

where:
W is the length of the chord defining the base of the arc
H is the height measured at the midpoint of the arc's base.

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