Question

Find the ration of the total surface area of a sphere and a hemisphere of same radius

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

A sphere of radius R, has a total surface area of 4(pi)R^2. A hemisphere of radius R, has a total surface area of 2(pi)R^2 +(pi)r^2 or 3(pi)R^2. Thus the ratio of the surface areas of a hemisphere to that of a sphere = 3/4.

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