There is a relatively straightforward formula for the case when all faces are regular (squares or equilateral triangles). If each edges ore of the same length, a, then
V = 1/12*{2*sqrt(2) + 3*sqrt(3)}*a^3
= approx 0.6687*a^3
If the faces are not regular then it is necessary to calculate the volumes of the two triangular pyramids and the central triangular prism and add the results together.
The formula to find the volume of a triangular pyramid is: 1/3 (1/2 B H ) H
Capacity generally implies volume in geometry. To calculate the volume of a triangular prism, find the area of one of its triangular bases and multiply it by the height of the shape.
You find the volume of a triangular prism by using this formula: Volume = 1/2 base of the triangle x height of the triangle x height of the prism.
volume=1/2*length*width*height.
by doing nothing
"triangular" is an adjective - it is not enough to define a shape. You can have a triangular pyramid or a triangular prism and there will be different methods to calculate their volumes.
Like all prisms you find the area of one of the triangular faces and then multiply by the height.
Find the area of a triangular section, 1/2bh, and then multiply by the length of the prism.
Volume of a triangular prism = cross-section area times length
Mass = Density x Volume
Go ask that guy
V = base area × height