In this publication, we will look at how you can find the volume of a ball and analyze examples of solving problems to fix the material.
Content
The formula for calculating the volume of a ball
1. Through the radius
The volume (V) of a sphere is equal to four-thirds of the product of its cubed radius and the number π.
Note: in calculations the value of the number π rounded up to 3,14.
2. Through diameter
The diameter of a sphere is equal to two of its radii: d = 2R. So, the formula for calculating the volume can look like this:
Examples of tasks
Task 1
Calculate the volume of a sphere if its radius is 3 cm.
Decision:
Applying the first formula (through the radius) we get:
Task 2
Find the volume of a sphere if its diameter is known to be 12 cm.
Decision:
We use the second formula, in which the diameter is involved:
