Before you study how to calculate volume of cylinder, you are advised to read:
What is Cylinder ?
How to find Area of Circle ?
Volume of cylinder = Π r2h
How formula for volume of cylinder is obtained
Observe the following diagram of cylinder:
Volume of cylinder is equals to Area of base multiplied by height (as shown above):
Volume of cylinder = Area of base X Height ... (Statement 1)
Now you can see that base is in circular share, so apply formula for area of circle and we get:
Area of Base = Π r2 ... (Statement 2)
As mentioned above in statement 1:
Volume of cylinder = Area of base X Height
Put values from statement 2 and we get:
= Π r2 X Height
Therefore, Volume of cylinder = Π r2 X Height = Π r2h
Note: Volume of cylinder is always in cubic units i.e. mm3, cm3, m3 etc
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