Answer to Question #30948 in Geometry for erkamranazam
of the circle of which it is a part.
A formula is provided below for the radius given the width and height of the
Given an arc or segment with known width and height:
Radius = H/2 + W^2/8H
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
So W = 54, H = 30
Radius = 30/2 + 54^2/8*30 = 27.15
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