Q3 of 33 Page 12

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


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