Find the length of the arc of a circle which subtends an angle of 60

Q) Find the length of the arc of a circle which subtends an angle of 60° at the centre of the circle of radius 42 cm.

Ans:

Since the length of an arc with angle θ, L = 2 π r x $Find the length of the arc$

here, r = 42 cm, θ = 60⁰

∴ L = $Find the length of the arc$

= 2 x 22 x 6 x $Find the length of the arc$

= 44 cm

Hence, the length of the arc is 44 cm.

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