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Triangular Prism Net Generator

Unfold a triangular prism — rectangles + triangle bases with exact dimensions

A triangular prism net has 3 rectangles for the lateral faces and 2 congruent triangles for the bases.

Enter side length and prism length — the calculator draws the complete net with fold lines, dimension labels, volume, and surface area.

Every net is printable — save and fold into a real 3D prism.

Graph

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FAQ

What does a triangular prism net look like?
A triangular prism net has 3 rectangles in a row (the lateral faces) with 2 triangles attached at the top and bottom of the middle rectangle.
What is the surface area of a triangular prism?
Surface area = 2 × (base triangle area) + 3 × (rectangle area). For an equilateral triangular prism with side a and length l: SA = a²√3/2 + 3al.
How many faces does a prism have?
A prism has 2 bases (identical polygons) plus one rectangle per base edge. A triangular prism has 5 faces, a rectangular prism (cuboid) has 6, a hexagonal prism has 8.
Can I print this net?
Yes! All dimensions are exact. Save via share/export, print at any scale, and add glue tabs for assembly.

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