Verified Answer :

the volume of a sphere is calculated like so:
v = 4pir^3/3
so half sphere will have half that volume:
v = (4pir^3/3)(1/2)
v = 4pir^3/6
plug in the data:
v = 4pi(10)^3/6
v = 2094.4
that is the volume of the half sphere

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