Question

Question 1. Find the shaded region in the following attached figure (10 th class areas related to circles question )
I m unable to solve it because my facts are clear :/

Question 2. A 10th class kid challenged me to solve it even said this question came in JEE mains (still laughing)
XD . What do you think could you ever find this question in mains?​

Answer 1

Answer:

the shaded region in the fig value is 9

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