It Is far more powerful and lighter than popular plaster-of-Paris ornaments, and is not so liable to chip or split if struck with anything. Tetrahedral carton of milk Whilst pretty typically formed like a cuboid, it is not unheard of to locate cartons missing proper angles and straight edges, as https://www.diigo.com/item/note/b5sxz/b5ho?k=f0729bd43c572b8cab7b9a55ea5e69e9