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cut a right cylinder // to its bases into 9 slices 2020 BMT Individual 5

Source:

January 6, 2022
geometry3D geometrycylinder

Problem Statement

A Yule log is shaped like a right cylinder with height 1010 and diameter 55. Freya cuts it parallel to its bases into 99 right cylindrical slices. After Freya cut it, the combined surface area of the slices of the Yule log increased by aπa\pi. Compute aa.
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