Thanks Kaka and David for the suggestion! This problem is from a recent GCSE exam.

0:00 problem
0:54 solution
7:33 or is it?

2024 June 10(morning) GCSE Math Higher Paper 3 Question 21
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Archimedes On the Sphere and Cylinder, Proposition 1
The works of Archimedes; Heath, Thomas Little, Sir, 18611940, published 1897
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