a rectangle...
boxes
A tent.
does a rectangle prism have 6 sides
Technically it is a rectangular prism.
a rectangle...
Rectangle dumby
A dollar bill is truly shaped like a rectangle.
The three faces of the prism may be, but are not necessarily, rectangles. It depends on how the ends of the prism are cut/shaped.
box,
Most people will, without hesitation, say a rectangle. In actual fact, though, the paper DOES have a thickness. If it did not, then a stack of dollar bills would still have no height. So, at a very fine level of detail, it is shaped like a rectangular prism.
boxes
A pentagonal prism is a three-dimensional shape with two pentagonal bases connected by five rectangular faces. Examples of objects that are shaped like a pentagonal prism include certain buildings with five-sided roofs, some types of pencils, and certain types of salt and pepper shakers. The shape is characterized by its five sides and two pentagonal bases.
Rectangle prism
A tent.
does a rectangle prism have 6 sides
Although it appears to be a rectangle technically it is a rectangular prism