Volume of a triangular prism calculator
Enter the dimensions of a triangular prism and read off its volume and surface area. Volumes convert to litres and gallons with the unit selector.
Volume
60m³
- Surface area
- 124.111 03
- Cross-sectional area
- 6
Show the working
- Triangle base = 4
- Triangle height = 3
- Prism length = 10
- Volume = 4 * 3 / 2 * 10 = 60
- Surface area = 4 * 3 + 10 * (4 + 2*hypot(4/2, 3)) = 124.111
- Cross-sectional area = 4 * 3 / 2 = 6
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- volume = cross-sectional area x length
The surface figure assumes an isosceles triangle cross-section.
Switch the volume unit to litres or US gallons to read the capacity directly.