The answer depends on formula for WHAT! Its surface area, number of edges, mass, volume. And since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
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Triangular prism = 2 triangles + 3 rectangles.
The Formula is Base*Height, or 1/2 Height (altitude of the triangle) * Base (of the Triangle) * height (Height of the prism)
Whatever the net, the answer is the same area as that of the net.
euler's formula= f+v=e+2 for triangular pyramid= f+v=e+2 = 5+6=9+2 = 11=11 for triangular prism= f+v=e+2 = 5+5=8+2 = 10=10 m not sure about the other two!!
A triangular prism has 6 verticies