Go to Surface Area or Volume. A cuboid is a box-shaped object. It has six flat faces and all angles are right angles. And all of its faces are rectangles. It is also a prism because it has the same cross-section along a length. In fact it is a rectangular prism. Examples of CuboidsCuboids are very common in our world, from boxes to buildings we see them everywhere. We can even fit them inside other cuboids!
A building A box with a slot as a handle Cuboids in a cuboid room
Boxes for model trains Now that's just silly! Square PrismWhen at least two of the lengths are equal it can also be called a square prism. (Note: we can still call it a rectangular prism if we want!) CubeWhen all three lengths are equal it is called a cube (or hexahedron) A cube is still a prism. And a cube is one of the Platonic Solids. So:
Note: The name "cuboid" comes from "cube" and -oid (which means "similar to, or resembling") and so says "it is like a cube". Another use of -oid is when we talk about the Earth being a spheroid (not exactly a sphere, but close). Surface AreaThe surface area is found using the formula: Area = 2 × Width × Length + 2 × Length × Height + 2 × Width × Height Which can be shortened to: A = 2wl + 2lh + 2hw
The volume of a cuboid is found using the formula: Volume = Length × Width × Height Which can be shortened to: V = l × w × h Or more simply: V = lwh
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