2*area of triangular base + perimeter of triangle*length of prism.
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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 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.
bh(s1+s2+s3)h
triangular prism- formula: Abh(area of the base * height)
Just use the formula (Base x Height '/. 2) to get the area