Question

Find, in terms of π, the length of the arc that subtends an angle of 30° at the centre of a circle of radius 4 cm.

Answer 1

Answer:

The length of Arc is 2π/3 cm .

Step-by-step explanation:

Given :  

Angle subtended by an Arc , θ = 30°

Radius of circle, r = 4 cm

Length of Arc, l = (θ/360) × 2πr

l = (30°/360°) × 2 × π × 4

l = (1/12) × 8π

l = 8π/12

l = 2π/3 cm

Length of Arc, l = 2π/3 cm

Hence, the length of Arc is 2π/3 cm .

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Answer 2

Answer:

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