How to determine with a measuring ruler the volume of a body of the correct geometric shape

How to determine with a measuring ruler the volume of a body of the correct geometric shape, for example, a matchbox or brick?

In order to use a ruler to determine the volume of a body of the correct geometric shape (for example, a brick or a matchbox), you need to measure its length A, width B and height C, and then calculate the volume using the formula:
V = A * B * C, m ^ 3



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