What is the length of an arc on a circle of radius 30.0 cm when θ=60∘?

The formula for arc length is as follows,

Length of arc (S) = r. θ

Step 1: Convert degree into radian:

θ = 60 * = 60 x π180 radian

θ = 22/21

Step 2: Length of arc (S) = r. θ

S = 21 x 22/21

By solving this, we get

S = 22 cm - answer

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