Tetrahedron
noun
A solid shape made up of four triangular faces.
The volume of a tetrahedron can be calculated using certain formulas.
Often appears as...
- regular tetrahedron
- volume of tetrahedron
Usage tips
Academic, Technical
noun
A solid shape made up of four triangular faces.
The volume of a tetrahedron can be calculated using certain formulas.
Often appears as...
- regular tetrahedron
- volume of tetrahedron
Usage tips
Academic, Technical
Definition 1 of 1
Pro Tip 1/3Mathematical Concept
Understand that 'tetrahedron' refers to a precise mathematical shape, not any four-faced object.
Studying solids, I learned a tetrahedron is a specific type of polyhedron.
Pro Tip 2/3Not Always Pyramid
While tetrahedrons resemble pyramids, they precisely have four triangular faces, unlike some pyramids.
A pyramid in Egypt isn't a tetrahedron, as its base isn't triangular.
Pro Tip 3/3Regular vs. Irregular
A regular tetrahedron has equal sides; irregular ones don't, but both share the four-face characteristic.
A regular tetrahedron is like a 3D equilateral triangle.
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Video examples
Where does energy come...
attached to a central carbon, as an example. Drawn on paper, it's just a still tetrahedron. But in real life, it's a jiggling mess. The kinetic energy of molecules is exactly the same type of energy as the energy you have when you're moving around, except that you can be still and molecules can't.
Video examples
Turning trash into toys...
They always make a triangular roof. Now this is people science. And if you were to just poke a hole over here and put a third matchstick, you'll get a T joint. And if I were to poke all the three legs of this in the three vertices of this triangle, I would make a tetrahedron.
Video examples
Exodus, a new design...
components to it so there's a tetrahedron module which is this and there's octahedral modules which is this and so from the island that I could actually create a wall in clay if I just mimic its actual molecular structure and so I started sort of playing around the
Video examples
Where does energy come...
attached to a central carbon, as an example. Drawn on paper, it's just a still tetrahedron. But in real life, it's a jiggling mess. The kinetic energy of molecules is exactly the same type of energy as the energy you have when you're moving around, except that you can be still and molecules can't.
Video examples
Turning trash into toys...
They always make a triangular roof. Now this is people science. And if you were to just poke a hole over here and put a third matchstick, you'll get a T joint. And if I were to poke all the three legs of this in the three vertices of this triangle, I would make a tetrahedron.
Video examples
Exodus, a new design...
components to it so there's a tetrahedron module which is this and there's octahedral modules which is this and so from the island that I could actually create a wall in clay if I just mimic its actual molecular structure and so I started sort of playing around the
Example 1 of 3
Quote examples
Ellsworth Huntington
American Educator
Today, no less than in the past, the tetrahedral form of the earth and the relation of the tetrahedron to the poles and to the equator preserve the conditions that favor rapid evolution.
Quote examples
Ellsworth Huntington
American Educator
Today, no less than in the past, the tetrahedral form of the earth and the relation of the tetrahedron to the poles and to the equator preserve the conditions that favor rapid evolution.
Example 1 of 1
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