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Tetrahedron Net Generator

Unfold a tetrahedron into 4 equilateral triangles — printable, with exact dimensions

A tetrahedron net unfolds the 4 equilateral triangle faces into a flat pattern. This calculator draws the net with fold lines, dimension labels, volume, and surface area for any edge length.

The tetrahedron is the simplest Platonic solid — 4 faces, 4 vertices, 6 edges. Its net is a central triangle with 3 triangles radiating from each edge. Enter an edge length and the net redraws instantly.

Every net is printable — use the share/export button to save, then print and fold into a real tetrahedron.

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FAQ

What is a tetrahedron net?
A tetrahedron net is a flat arrangement of 4 equilateral triangles that folds into a tetrahedron. One triangle serves as the base, and the other 3 fold up to form the sides.
What is the volume of a tetrahedron?
For a regular tetrahedron with edge length a, the volume is V = a³√2/12. This equals approximately 0.1178a³.
What is the surface area of a tetrahedron?
The total surface area is SA = √3·a², since it has 4 equilateral triangles each with area (√3/4)a².
Can I use this as a D4 dice template?
Yes! A regular tetrahedron is the shape of a D4 die used in tabletop RPGs. Print the net, write numbers 1–4 on each face, add glue tabs along fold lines, and fold.

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