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What is the diff between area and volume?
Area is a two-dimensional measurement. It tells you how big a two dimensional object is or how large the surface of a three-dimensional object is.Volume is a three dimensional measurement. It tells you how big the inside of a three-dimensional object is or how much a three-dimensional object can hold inside.
Is a polyhedron a two-dimensional solid bounded by intersecting planes?
A polyhedron is a three-dimensional object, not two-dimensional.
A three dimensional object cannot be built from two dimensional objects?
That's more of a statement than a question. It's also a false statement. You can build a three dimensional object from two dimensional objects, if you have an infinite number of them.
How many faces does a two dimensional cube have?
A cube is specifically a three-dimensional object in geometry and therefore cannot be two-dimensional.
Are clouds two dimensional or three dimensional?
Clouds are three dimensional, which is very noticeable if you have ever flown through one in a plane (as I have). I would also note that all physical objects are three dimensional; a true two dimensional object only exists as a mathematical abstraction. However, some things come close to being two dimensional. A piece of paper does have some thickness, but for most purposes it can be treated as a two dimensional object.
