Measurement of the New Angle A

s=arc length (in radians)
r=radius
theta=central angle in radians

if s=1ft, r=1ft
1ft=2pi*1ft(theta/360)
1ft/(2pi*1ft)=theta/360
1/2pi=theta/360
360/2pi=theta

theta=57.3radians
theta=43°
 
s=arc length (in radians)
r=radius
theta=central angle in radians

if s=1ft, r=1ft
1ft=2pi*1ft(theta/360)
1ft/(2pi*1ft)=theta/360
1/2pi=theta/360
360/2pi=theta

theta=57.3radians
theta=43°

I tried solving this one for a while before posting here.
 


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