32651: the surface area of a spherical part of a hemispherical bowl with a flat circular detachable cover, excluding the cover, is 616 sq cm. the area of the cover is 38.5 sq cm. what is the volume of the bowl?
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According to the question, the surface area of sphere is 616cm2 and also surface area of sphere is πr2.
Therefore, this should consider by taking 4πe2=616cm2 and it takes r2=616x1/4x7/22.
The area then calculated as r2=49 and r=7cm. The volume of the bowl takes easy to calculate with area of sphere.
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