Hemisphere volume = [(4 / 3) πr3] / 2
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A semi-circle is a 2-dimensional figure and so cannot have a volume.
It is the length of the base of the semi-circle.
how do you find the area of a semi circle
circle does not have volume
to find the area of a semi circle measure the length of the straight edge, divide by 2, square it and multiply by pi. This will give you the area of the circle. To get the area of the semi-circle divide your answer by 2