a six sided object
Square
The antonym for vapor is solid.
An antonym would be frozen or solid.
In geometry, a rectangular solid is called a rectangular solid. A cube is a rectangular solid that happens to have all surfaces equal.
If a rectangular solid is a cuboid, the answer is 12.
Rectangular parallelepiped
Write a sentence that will make the reader understand the definition of a "rectangular solid" DEFINITON: A rectangular solid is a six-sided solid block in which all sides are rectangles.
A rectangular solid that is not a cube has 3 planes of symmetry.
A rectangular solid is 3-dimensional, but I'm assuming you mean a 2-dimensional representation of a rectangular solid, which is called a net. Do a search for the following: "net rectangular prism" and you will see a drawing of it.
solid
solid
solid