Respuesta :

Alike: Prisms and pyramids are solid geometric shapes that have flat sides, flat bases as well as angles.

Differ: Prisms have two bases, pyramids only have one.
Hope this helps :)
Alike - 3D, at least one base, faces are polygons.
Different - Prism has 2 bases, pyramid has one, prism faces are rectangles, pyramid faces are triangles.