Work out any surface area then times it by the dimention you did no use. You just need to work out the surface area for all 3 sides and times each one by two, as there are two of each shape. Rectangle are easier, they have 6 sides, or 3 pairs of 2 sides (sides opposite are the same, top and bottom the same size for example). The calculator will automatically calculate the volume of the prism. To use the calculator: Enter the area of the base of the prism. You can add several irregular prism metrics to calculate the sum of several irregular prisms as well as viewing the volume for each irregular prism entered. Surface area = (Perimeter of the base × Length) + (2 × Base Area) = (a + b + c)L + bh Our prism volume calculator is designed to make it easy for you to find the volume of any prism. Below is an online calculator that will calculate the volume of an irregular prism for you. The result from the calculation, using our volume of a rectangular box.
Rectangular prism volume calculator full#
You need use 1/2 base x height for surface area of a triangle then multiply by depth, this will be volume.įor the surface area I could explain but it's hard without a diagram so just know it's this, explanation on the link. View Full DocumentAny prism volume is V BH where B is area of base and H is. If you work out the surface area for one face and then times by depth (or the other dimension you didn't use when working out the surface area of one face) you will get the volume.
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