How to find the radius of a sphere when given the surface area.
We will use the formula of the surface area of a sphere to find the radius of the sphere.
Answer: r = (A / 4π)0.5
The formula to find the surface area of the sphere is given by A = 4π × r2.
Now to find the area from the surface area formula we use the following steps.
Step 1- Transpose 4π on the left-hand side, which makes the equation as A/4π = r2
Step 2- Now taking square roots on both hand sides we get, r = (A / 4π)0.5
Hence, r = (A / 4π)0.5 is the value of radius if the surface area of a sphere is known.