Question

Hey guys ❤❤

A challenge for math lovers .

Can you try solving the above problem using your own method. don't use the method as given in the example .

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Answer 1

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Refer to the attachment.

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Solution :-

Angle of pendulum = 30°

Length of arc =4.4 cm

According to the question :-

30/360 x 2 x 22/7 x r = 4.4

Hence,

r = 4.4 x 6.6 x 7/22 x 10= 42/5 cm = 8.4 cm