Length of prism * perimeter of triangular face.
triangular prism- formula: Abh(area of the base * height)
It depends on the size of the triangular prism, but depending on the side of the prism you use the triangle area formula to find it or the rectangle area formula to find it.
What is the formula for a triangular prism
Find the area of a triangular section, 1/2bh, and then multiply by the length of the prism.
The formula is Bxh where B is the base which is the area of the triangle and h is the height of the prism.
Assume that a = apothem length of the triangular prism, b = base length of the triangular prism, and h = height of the triangular prism. The formulas to find the surface area is SA = ab + 3bh.
2*area of triangular base + perimeter of triangle*length of prism.
It depends on what information you have.
Whatever the net, the answer is the same area as that of the net.
A triangular prism can be thought of as a stack of triangles. Then the volume is equal to the area of the triangular base multiplied by the height of the prism, or 1/2 length * width * height.
Area of triangle * 2 + perimeter of triangle * length.