SOLUTION: a food colander is a hemisphere with diameter 20 cm. Find the volume and internal surface area.

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Question 605904: a food colander is a hemisphere with diameter 20 cm. Find the volume and internal surface area.
Answer by solver91311(24713) About Me  (Show Source):
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The volume of a sphere is given by

The volume of a hemisphere is half of that,

The surface area of a sphere is given by

The surface area of a hemisphere is half of that,

Remember that the radius is half of the diameter.

John

My calculator said it, I believe it, that settles it
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