Volume of cylinders

Given the radius and h, the volume of cylinders can be found by using the formula:


Volumecylinder = Area of base × height = pi × r2× h

Use 3.14 for pi.

Notice that the base of the cylinder is a circle and the formula to get the are is pi × r2

Example #1:

Calculate Volumecylinder if r = 2 cm and h = 5 cm

Volumecylinder = pi × r2× h

Volumecylinder = 3.14 × 22× 5

Volumecylinder = 3.14 × 4 × 5

Volumecylinder = 3.14 × 20

Volumecylinder = 62.8 cm3

Example #2:

Calculate Volumecylinder if r = 4 inches and h = 8 inches

Volumecylinder = pi × r2× h

Volumecylinder = 3.14 × 42× 8

Volumecylinder = 3.14 × 16 × 8

Volumecylinder = 3.14 × 128

Volumecylinder = 401.92 inches3


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