Triangular Prism Surface Area Calculator
Enter the three sides of the triangle and the length of the prism. The calculator validates the triangle inequality and returns the full surface area.
What this calculator does
Computes the surface area of a triangular prism from its dimensions, using the formula SA = 2·A_tri + (a+b+c)·L, A_tri by Heron's formula. Supports all common length units on input and any area unit on output, with a worked breakdown.
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