Find the ratio of total surface area of a sphere and a solid hemisphere of same radius.

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Feb. 24, 2018, 4:35 p.m.

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Feb. 28, 2020, 4:13 p.m.
R1=r2
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Nov. 9, 2019, 1:01 a.m.
I
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Feb. 24, 2018, 4:35 p.m.

Find the ratio of total surface area of a sphere and a solid hemisphere of same radius.

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