Tetrahedron - Meaning, Definition & English Examples
A tetrahedron is a three-dimensional shape with four triangular faces, six edges, and four vertices. It is the simplest type of pyramid and a common example of a polyhedron.
Definition:
A three-dimensional shape with four triangular faces, six edges, and four vertices.
Synonyms:
triangular pyramid, polyhedron, Platonic solid
Part of Speech:
noun
Antonyms:
sphere, cube
Common Collocations:
regular tetrahedron, irregular tetrahedron, tetrahedral structure
Derivatives:
tetrahedral, tetrahedrally
Usage Tips:
Use "tetrahedron" to describe geometric shapes in math or science contexts.
Common Phrases:
perfect tetrahedron, distorted tetrahedron, molecular tetrahedron
Etymology:
From Greek "tetra-" (four) and "hedra" (base or face), meaning a four-faced figure.
Examples:
- 1. The children built a model of a tetrahedron using straws and clay.
- 2. A regular tetrahedron has all its faces as equilateral triangles.
- 3. The molecule’s shape resembles a distorted tetrahedron due to electron repulsion.
- 4. She studied the properties of a tetrahedron in her geometry class.