Question

A sector is cut from a circle of radius 42cm. The central angle of the sector is 150°. Find the length of the arc.

Answer 1

Given: Radius of a circle, r = 42cm

Central Angle of the sector, θ = 150°

To find: Length of the arc i.e. AB

Now,

⇒ Length of an arc of a sector of angle θ = 5 × 22 =110 cm