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That depends what you know about the sphere. For example, if you know the diameter, just divide it by 2 to get the radius.

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15y ago

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Related Questions

What is the equation for finding the radius of a sphere when you know the circumference?

The equation for circumference is C=2(pi)(r) where C is the circumference and r is the radius. You can find the radius by plugging in the circumference into this equation and solving the equation.


What is the radius of a sphere that has a surface area of 1742400 squre ft?

Finding the radius of a Sphere by using the surface area is a multi-step mathematical equation. The radius (r) of a sphere with a surface area of 1742400ft is 372.365ft.


What is the formula of finding the radius of a sphere?

diameter/2


How do you do the equation 4dividedby3 pi radius cubed Example please?

It's used in finding the volume of a sphere which is: Volume = 4/3*pi*radius3


What is the equation for the surface area of a sphere?

Surface area of a sphere with radius r = 4(pi)r2


What is the equation of sphere?

The equation of a sphere with radius r, centered at (x0 ,y0 ,z0 ) is (x-x0 )+(y-y0 )+(z-z0 )=r2


Formula for finding volume and area of sphere?

Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius


What is the equation for finding area in a circle?

It's radius x radius x pi.


Formula for area of a sphere?

There is NO equation for the area of a sphere Assuming you mean surface area, the surface area of a sphere of radius r is 4πr^2.


What is the formula for finding the radius of sphere?

1/2 diameter or the circumference/pi/2


What is the equation for sphere volume?

the volume of a sphere is 4/3 times pi times the radius of the sphere cubed. V=4/3 Pie r3


What is the equation for the scale factor of a sphere?

There is no equation for the "scale factor" of a sphere. If I assume you to mean how the volume increases with radius then you would use the volume equation for a sphere and calculate volume based on corresponding radii. You could then divide the resultant volumes to give a percentage or factor of how much larger or small one sphere is than another. You'll see that a small change in radius causes a large change in volume due to the volume being a cubic factor of the radius.