A pendulum swings through an angle of 30° and describes an arc 6.6 cm in length. Find the length of the pendulum. (Use π= 22/7)

Given: Angle = 30°

Length of the arc = 6.6 cm

To find: the length of the pendulum

Explanation:

We know,

Substitute the known values to get,

⇒ r = 6.3 cm