Question

total surface area of sphere​

Answer 1

Step-by-step explanation:

The area of a disk enclosed by a circle of radius R is Pi*R2.

The formula for the circumference of a circle of radius R is 2*Pi*R.

A simple calculus check reveals that the latter is the derivative of the former with respect to R.

Similarly, the volume of a ball enclosed by a sphere of radius R is (4/3)*Pi*R3.

And the formula for the surface area of a sphere of radius R is 4*Pi*R2.

And, you can check that the latter is the derivative of the former with respect to R.

Answer 2

Step-by-step explanation:

• Similarly, the volume of a ball enclosed by a sphere of radius R is (4/3)*Pi*R3. And the formula for the surface area of a sphere of radius R is 4*Pi*R2.