The answer depends on what sort of triangle: right angled, equilateral, isosceles or scalene.
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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.
It depends on the shape of the prism - whether its ends are triangular, rectangular or are polygons with more sides.
V= 1/2(length*width*height)
264 cubic inches.
One half base times height of the triangle times length of the prism.