What is a triangular-based pyramid?

[RuthWroe07]

Can someone explain what a triangular-based pyramid is? I want to understand its structure, properties, and how it differs from other types of pyramids.

 

[Lucky]

A triangular-based pyramid, also known as a tetrahedron, is a three-dimensional solid with a triangular base and three triangular faces that meet at a single point called the apex. It has four faces, six edges, and four vertices. Triangular-based pyramids are common in geometry, architecture, and crystal structures due to their stability and symmetry.

 

[royjasika]

A triangular-based pyramid, also called a tetrahedron, is a three-dimensional solid with a triangular base and three triangular faces connecting at a single vertex. It has four faces, six edges, and four vertices. This shape is often studied in geometry and used in architectural and structural designs.