Find the volume for the whole sphere (4/3 x pi x radius cubed) then divide by two.
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The volume of a sphere is given by the formula V =⁴⁄ ₃πr3The volume of a sphere with radius 7cm = ⁴⁄ ₃π73 = 1436.76 cm3 (to 2 dps)
volume = 4/3 pi * (cubed radius)
The formula for the volume of a sphere is 4/3 x pi x r3. This means the volume of a sphere with diameter (which is twice as long as the radius) is 33.51 cm3.
Formula for the volume of a sphere = 4/3*pi*radius3 Volume = 4/3*pi*53 => 523.5987756 cubic inches
The volume would be (500pi)/3 since the formula for a sphere is (4r3pi)/3, when radius=r The volume is exactly 523.598776 cubic meters.