Both are 3D shapes which are pentahedra, comprising triangles and rectangle(s).
They are both three dimensional prisms.
They are all rectangular prisms!
They both have a triangular shape
there both rectangle
They both have at least one rectangular face.
Rectangular pyramids and triangular pyramids both have triangular faces.
They are both 3d solid figures based on rectangles.
They are all, technically, prisms.
A triangular pyramid is similar to a triangular prism because:These prisms have triangular bases.They have the sharp vertices on each side.These prisms also have quadrilateral faces or 4-sided faces!
They are polyhedra, with several rectangular faces, and with two identical and parallel bases.
They are polyhedra, with several rectangular faces, and with two identical and parallel bases.