bh + (S1+ S2 + S3)H
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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.
2*area of triangular base + perimeter of triangle*length of prism.
Surface area is squared; volume is cubed.
a triangular prism has to triangular bases while a rectangular prism has a rectangle as the bases.
A surface area would be vital for determining volume