Rectangular Prisms: Most Skyscrapers, a cardboard box, and a book
Triangular Prism: Camping Tent and Slice of Cake.
Step-by-step explanation:
Rectangular Prisms: Most skyscrapers are rectangular prisms because they have 4 very long sides and 2 smaller sides. A cardboard box can be a rectangular prism for the same reasons. And a book, even though it doesn't look like a normal one, it still is a rectangular prism.
Triangular Prism: A Camping tent has 2 short triangular sides and 3 rectangular sides. A slice of cake has 2 tall triangles and 3 other rectangular sides. These fall under the category of a triangular prism.
