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Calculate the length of the arc of a cir...

Calculate the length of the arc of a circle of radius 31.0 cm which subtands and angle of `(pi)/(6)` at the centre.

A

11.7 cm

B

14.7 cm

C

16.7 cm

D

15.7 cm

Text Solution

Verified by Experts

The correct Answer is:
D
Here, `theta=(pi)/(6),r=30cm`
As `theta=(l)/(r)impliesl=thetar=(pi)/(6)xx30cm=(3.14)/(6)xx30cm=15.7cm`
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