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Make the radius the subject of the formula 4/3*pi* radius3 = volume and then double it to give the diameter.
Mars is almost a sphere and the volume of a sphere is: 4/3*pi*radius3 So find its radius and its volume can be found using the above formula
Volume of a sphere = 4/3*pi*radius3 Volume = 4188.790205 cubic inches
Given a sphere of radius r, Surface area = 4{pi}r2 Volume = (4/3){pi}r3
V = 4/3 pi r^3 4/3 * pi V/this answer take cubic root double answer to get diameter.