What is the radius of a sphere with a surface area of 16?
In order to find the radius, first write the surface area formula for a sphere and substitute the surface area.
A=4πr²
16=4πr²
Divide by 4π on both sides in order to isolate the r² term.
16/4π=4πr²/4π
Simplify both sides of the equation.
r²\=4π
Square root both sides.
r =(4π)^0.5
r = 2/(π^0.5)
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