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finding the volume for each could you use the formula for the volume of a sphere...

finding the volume for each could you use the formula for the volume of a sphere and divide by 2 (or multiply by 1/2) to get the volume of the hemisphere in part b?

b. If you were asked to find the surface area of the hemisphere, do you need to something other than just take half of the surface area of a sphere or do you need more? (Hint, think about what you will paint).

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