Find the length of a circular arc

subtended by an angle of π/12 rad if the radius of the circle is 60 cm angle is 15 degrees.
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serkel ark...=radius*angel... radius=60, angel=pi/2... pi=180 deg, so pi/2=90 deg... leng=3.141592654*60/2... =30*3.141592654... =94.2477795
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