
Tetrahedron
Mathematical 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.
Not 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.
Regular 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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