Volume of prisms - 11th Sep 2008
In the lesson today we were calculating the volume of prisms.
A prism is any 3D shape that has a constant cross section (when you slice it the cross section is the same all the way through). Some examples of prisms are: cuboids, triangular prisms and cylinders.
The volume of any prism is found by the following general formula:
Volume = area of cross section x length
For example to find the volume of a triangular prism:
Volume = Area of cross section x length
Volume = ½ b x h x L
Volume = ½ x 7 x 4 x 5
Volume =70
More details and example are available on the Mymaths lesson on volumes of prisms.
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