Which 3-dimensional figure most resembles an empty cereal box? Be a specific as possible, distinguishing it as a solid or a surface.
Cuboid. It's not solidly filled, so it's a surface.
I haven't studied cuboid.. I was thinking maybe a solid right rectangular prism?
A cuboid is a right rectangular prism. An empty cereal box is not solid, though.
ohh that's right... ok so maybe right rectangular prism surface?
http://mathworld.wolfram.com/Prism.html: "A right prism is a prism in which the top and bottom polygons lie on top of each other so that the vertical polygons connecting their sides are not only parallelograms, but rectangles (right figure). A prism that is not a right prism is known as an oblique prism. If, in addition, the upper and lower bases are rectangles, then the prism is known as a cuboid."
(I had forgotten about "right prism". So, you are right, it's a right prism with rectangular bases).
so I would say Right Rectangular Prism Solid.. it says empty cereal box, but I assume it still closed..
Well, what's the definition of solid?
an enclosed figure
Ok, so in Geometry, "solid" means what you said. So you're right.
ok
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