Total Fabrication

Glossary

How do you calculate the volume of an object?

When a two dimensional figure is given thickness a three dimensional figure is created. Three dimensional figures are called solids.

The volume of a solid is the amount of material the solid contains. Units are written as mm 3 (cubic millimetres), m 3 (cubic metres), in 3 (cubic inches), or ft 3 (cubic feet).

The formula for the volume of a cube is V = S3

The formula for the volume of a rectangular solid is V = l x b x d

The formula for the volume of a triangular prism is  V = l times bh over 2

The formula for calculating the volume of a disk is V = pi d squared times t over 4

(In engineering we tend to work with diameter (D), but sometimes you may have to use the radius (r) of a circle in which case the formula for volume of a disk is A = pi r2 x T)

How do you calculate the volume of a solid?

Find the volume of a rectangular solid

Find the volume of a cube

Find the volume of a triangular prism

Find the volume of a disk

 

Need more practice?

Word iconComplete this volume activity sheet (Word 438 kb)

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