Question 55967 • Reading HS- Integrated Math I
A sphere’s surface area is 4πr². A hemisphere resting on its base has both its curved surface and its circular base, so its total surface area is 2πr² + πr² = 3πr². With the same radius, the ratio is 4πr² : 3πr² = 4 : 3, so the answer is D, 4 : 3.
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