A cuboid.
A two-dimensional shape with three sides is a triangle. A three-dimensional shape with three faces is a cylinder.
The mathematical name for a rectangular pyramid is a "rectangular pyramid" itself. It is a three-dimensional geometric shape with a rectangular base and four triangular faces that converge at a single apex. The properties and calculations associated with rectangular pyramids often involve their height, base dimensions, and slant height.
a polyhedron * * * * * That is only if it is bounded by plane faces. A sphere, for example, is a three dimensional shape but is not a polyhedron: it is a solid shape.
There is none you idiot
The solid shape that has six rectangles is called a rectangular prism, or a cuboid. This three-dimensional shape has six faces, each of which is a rectangle, and its opposite faces are congruent. Rectangular prisms can vary in dimensions but always maintain right angles between adjacent faces.
A cube.
A double helix
decahedron
sphere
triacontahedron
Another name for a triangular prism is a "triangular box." This term is often used informally to describe the three-dimensional geometric shape that has two triangular bases and three rectangular lateral faces. The shape is commonly encountered in various fields, including mathematics and design.
Hexagon