What is the surface area of 64 cubic feet?

If the volume of a cube is 64 cubic feet, then the length of a side must be 4 feet. So the surface area would be 4 x 4 x 6 = 96 square feet.

How do u find the surface area of a sphere?

The steps to calculate the surface area of a sphere is:

1. Step 1: Know the radius of the sphere.
2. Step 2: Take the square of the radius by multiplying it by itself.
3. Step 3: Multiply r2 by 4.
4. Step 4: Multiply the value of 4r2 by the approximate value of pi, that is, 3.14.
5. Step 5: At last, add the units to the final answer.

How do you find the surface area and volume of a sphere?

Things to Remember

1. Surface area of sphere = 4πr2
2. Volume of a sphere = 4/3 πr3
3. You only need to know the radius to figure both the volume and surface area of a sphere.
4. Answers for surface area problems should always be in square units.
5. Answers for volume problems should always be in cubic units.

Why is surface area of sphere derivative of volume?

The rate of change of the volume of the sphere is equal to the surface area of the sphere. The outside of the paint is the new boundary of the sphere, and the inside of the paint is added to the volume. This explains why the derivative (rate of change) of the volume is the surface area (SA).

How do we calculate the volume of a sphere?

The formula for calculating the volume of a sphere with radius ‘r’ is given by the formula volume of sphere = (4/3)πr3.

What is the volume and surface area of a sphere?

1 Volume of a sphere: V = (4/3)πr3 2 Circumference of a sphere: C = 2πr 3 Surface area of a sphere: A = 4πr2

How do you find the radius and circumference of a sphere?

Given the surface area of a sphere calculate the radius, volume and circumference. Given A find r, V, C r = √(A / 4π) Given the circumference of a sphere calculate the radius, volume and surface area. Given C find r, V, A r = C / 2π.

What are the 3 unknown values of a sphere?

This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. It will also give the answers for volume, surface area and circumference in terms of PI π.

What is a sphere in terms of pi π?

It will also give the answers for volume, surface area and circumference in terms of PI π. A sphere is a set of points in three dimensional space that are located at an equal distance r (the radius) from a given point (the center point). Units: Note that units are shown for convenience but do not affect the calculations.