3D Shapes Prisms & Pyramids
A Pyramid is also a polyhedron, its base is a a polygon but the lateral sides are triangles. To be a pyramid the 3D shape has to have 1 base and triangular side bases that meet at one vertex.
WORDS TO KNOW
Face: a flat surface on prisms and pyramids, faces are polygons.
Edge: A fine line formed by two faces.
Vertex: A point where two or more edges meet.
Polygon: a plane figure with at least three straight sides and angles, and typically five or more.