you can use your favorite 3d creation program of your choice, i prefer Rhino, or Alebra. Make a pentagon, copy, and rotate the sides from the center of the first pentagon exactly 63.43 degrees or the complementary of that angle. Its really easy because then you just mirror that second pentagon onto the other sides of the first pentagon. If you want a more elaborate explanation, go look for another tutorial on some site, maybe YouTube if your lucky. Sorry but there you go.
there are 4 different ways to make a TETRAHEDRON.
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I am not a tetrahedron!
Four triangular faces.
A tetrahedron has 4 faces.
A tetrahedron must be plane faced and so, it is just an ordinary tetrahedron.
Well, a tetrahedron has four sides. A regular tetrahedron is a triangular pyramid.
He faced a tetrahedron question in the exam paper. This is a sample sentence using the word tetrahedron.
Construct/make a tetrahedron, which is three-dimensional.
A Tetrahedron. The most common form of a tetrahedron is called a regular tetrahedron, or a pyramid
A tetrahedron has 4 faces.
A tetrahedron has four faces.