Equilateral cylinder

A sphere is inserted into the rotating equilateral cylinder (touching the bases and the shell). Prove that the cylinder has both a volume and a surface half larger than an inscribed sphere.

Result

k1 =  1.5
k2 =  1.5

Solution:

Solution in text k1 =
Solution in text k2 =

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To solve this verbal math problem are needed these knowledge from mathematics:

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