Imagine a pyramid, with a triangle shaped base, with three sides coming up each of which is a triangle. That is a tetrahedron (4 sides, all the same side, with each one the shape of a triangle).
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Mostly correct, but the four faces need not all be the same.
A tetrahedron is 3-dimensional and so it looks just like an ordinary tetrahedron.
It will look like a 2D equilateral triangle if it is a triangular based pyramid which is called a tetrahedron.
A tetrahedron is a three-dimensional geometric shape that consists of four triangular faces, six edges, and four vertices. Each face of the tetrahedron is an equilateral triangle, making it a type of polyhedron. It resembles a pyramid with a triangular base, and all its vertices are equidistant from each other in a regular tetrahedron. The shape is often associated with the simplest form of three-dimensional space.
Well, a tetrahedron has four sides. A regular tetrahedron is a triangular pyramid.
A tetrahedron must be plane faced and so, it is just an ordinary tetrahedron.
A tetrahedron is 3-dimensional and so it looks just like an ordinary tetrahedron.
It doesn't "look like" anything, because it's far too small to interact much with visible light. The overall shape is, well, a tetrahedron. If you don't know what a tetrahedron is, think about what a pyramid would look like if it had a triangular base instead of a square one and you'll be pretty close.
In geometry, an octahedron is a polyhedron with eight sides. A regular octahedron is the dual polyhedron of a cube; It is a rectified tetrahedron.
A tetrahedron looks like a pyramid but instead of having a square base, it has a triangular base.
A pyramid with a triangle as base is considered as a tetrahedron. It is a three dimensional polyhedron with 4 equilateral triangles as its sides. If one would look at the word tetrahedron, it literally means "with four planes".
A tetrahedron.
I am not a tetrahedron!
It will look like a 2D equilateral triangle if it is a triangular based pyramid which is called a tetrahedron.
A tetrahedron has 4 faces but it doesn't look like a rectangle standing up. It is formed by 4 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.