<P> When unspecified , a pyramid is usually assumed to be a regular square pyramid , like the physical pyramid structures . A triangle - based pyramid is more often called a tetrahedron . </P>
<P> When unspecified , a pyramid is usually assumed to be a regular square pyramid , like the physical pyramid structures . A triangle - based pyramid is more often called a tetrahedron . </P>
what do you call a pyramid with a triangular base
what do you call a pyramid with a triangular base
a tetrahedron
a tetrahedron