diameter/2
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
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
Volume of a sphere = (4/3) x (pi) x (Radius)3
The formula for the volume of any sphere isVolume = ( 4/3 pi ) x (cube of the radius)
diameter/2
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
If you mean 4*pi*r^2 then it is the formula for finding the surface area of a sphere
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
Volume of a sphere = (4/3) x (pi) x (Radius)3
A sphere does not have a perimeter. It can have a diameter a circumference or a surface area (or volume but that isn't discussed here.The diameter of a sphere is two times the radius (r): so the formula would be2r...or...2 x rThe circumference (C) of a sphere is equal to 6.2832 times the Radius, where 6.2832 is twice Pi (): so the formula would beC = 2r...or...C = 2 x x rThe area of a sphere is equal to the Square of the Radius of the sphere multiplied by 12.566 (4 times ): so the formula would be4 * * R * R
Use the formula for volume to solve for the radius of the sphere and then plug that radius into the formula for the surface area of a sphere.
That depends what you know about the sphere. For example, if you know the diameter, just divide it by 2 to get the radius.
you measuresit by the radius
The formula for the volume of any sphere isVolume = ( 4/3 pi ) x (cube of the radius)
Treat the 3D sphere as a 2D circle. The radius for the sphere is the same radius as for the circle. No matter where on the sphere you place a mark, the distance (radius) from the mark to the centre of the sphere will always be the same as the circle.
The formula for the volume of a sphere is based on the radius of the sphere. It is equal to 4/3 multiplied by pi, multiplied by the radius cubed.