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What's more important is knowing the formulae for a sphere which are:- Volume of a sphere = 4/3*pi*radius3 Surface area of a sphere = 4*pi*radius2
Formula for volume of a sphere = 4/3*pi*radius3 measured in cubic units.
The volume for a sphere is: 4πr3 3 the π is pie (3.14)
Volume of a sphere = 4/3*pi*radius3 in cubic units.
Because when working out volumes the answer is given in cubic units and the radius in the formula for finding the volume of a sphere is cubed: Volume of a sphere in cubic units = 4/3*pi*radius3