Measuring Spheres: How to Use the Formula (4/3 π r3)

In summary, the teacher gave the students a formula (4/3 π r3) to measure spheres but did not show them how to use it. The formula represents the volume of a sphere, where "r" is the radius and Pi is a constant. The OP may need further clarification on how to solve problems using this formula.
  • #1
cubed
8
0
I have homework, the teacher gave us measuring spheres. He gave us the formula (4/3 π r3) But he didn't show us how to figure out the problem.
I don't know how your suppose to figure it out.
 
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  • #2
What's the problem? Do you want to know the derivation of the formula or a proof?
 
  • #3
The equation you stated it the equation for the volume of a sphere where "r" represents the radius of the sphere (the distance from the centre of the sphere to edge) and Pi is the constant 3.14...

You should be able to work things from there.

Leila
 
  • #4
I would really doubt if the OP thought the same way as you are explaining :confused: :cool:
 
  • #5
Don't get dexter started on spheres..

Edit: was there any need to bring up threads that are nearly a month old?
 

1. How do you measure the diameter of a sphere for homework?

The diameter of a sphere can be measured using a ruler or a caliper. Place the object on a flat surface and measure the distance across the center of the sphere. This will give you the diameter of the sphere.

2. What is the formula for calculating the volume of a sphere?

The formula for calculating the volume of a sphere is V = (4/3)πr³, where V is the volume and r is the radius of the sphere.

3. How do you find the surface area of a sphere for homework?

The surface area of a sphere can be calculated using the formula SA = 4πr², where SA is the surface area and r is the radius of the sphere.

4. Can a sphere have a negative volume?

No, a sphere cannot have a negative volume. Volume is a measure of the space occupied by an object and it cannot be negative.

5. How do you convert the diameter of a sphere to its radius?

To convert the diameter of a sphere to its radius, divide the diameter by 2. This will give you the radius measurement, which is half the diameter.

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