SOLUTION: a food colander is a hemisphere with diameter 20 cm. Find the volume and internal surface area.
Algebra.Com
Question 605904: a food colander is a hemisphere with diameter 20 cm. Find the volume and internal surface area.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
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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