Assertion: pyramid | /r/HasAspect | triangular faces
Facets:
Source sentences:
text: In Geometry mathematics, a pyramid is a solid figure which has polygonal base and triangular faces.
text: A pyramid has one n-gonal base and n triangular faces that meet at an apex above (or below) the base.
text: A pyramid is a polyhedron that has a base, which can be any polygon, and three or more triangular faces that meet at a point called the apex.