The length of 60° arc is 4π.
What is central angle?
'A central angle is an angle whose vertex is the center O of a circle and whose legs are radii intersecting the circle in two distinct points A and B. Central angles are subtended by an arc between those two points, and the arc length is the central angle of a circle of radius one.'
According to the given problem,
The formula for arc length is s=rθ. "r" in this case is 12cm and "theta" is 30 degrees, which converted to radians is pi/6.
s = 12*π / 3
= 4*π
Hence, we can conclude, the length of a 60° arc is 4π.
Learn more about central angle here:
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