Is a 3-dimensional rectangle still considered a "cube" or is it called something else?

Question

Is a 3-dimensional rectangle still considered a "cube" or is it called something else?

Answer 1

Its only a cube if all the edges are the same length (and of course the sides are perpendicular). What you're referring to is a right-angled parallelepiped.



It's a cuboid ONLY if a pair of sides are squares. If all the sides are rectangles, it's a right-angled parallelepiped.



A regular polyhedron is a polyhedron with all the sides the same.

Answer 2

3 Dimensional Rectangle

Answer 3

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;D Wow he's cool, drawing boobs in paint. Wish I could be like that ;P The explanation (to me) is rather simple. Writers write. Writing, in the first place, is considered a mostly 'dreary' and boring activity. People groan when people announce that I have to write anything over 200 words long, and writers write over TWO THOUSAND WORDS, DAILY (or at least weekly, if you're on the slob-side). The google definition of a nerd is 'A contemptible person lacking in social skills and/or is boringly studious.' Its interesting to note that the second definition is: 'An intelligent, single-minded expert in a particular technical discipline or profession' All of this is at least partly true. Dedicated writers will devote more of their time to apparently 'boring' activities (writing/brainstorming/planning) rather than social activities. This doesn't mean we have fail social skills though, writers are the most interesting and wonderful people I know. But then, I am also a writer, so this is a rather biased opinion. As for the second...all accomplished writers (where accomplished refers to your ability to create a sturdy and riveting plot, as well as use proper grammar and spelling), are relatively intelligent, either naturally, or from the years of practicing they've put into perfecting this art. As a writer continues in their work, they mature and become experts in writing styles, writing cliches, writing tropes, little tricks of the trade... Writers as a whole, (dare I say this) are some of the most focused and devoted people to their work - and why wouldn't they? They're creators of entire worlds that they control! ;D Message me some day and tell me what you think~ BQ 1: I had chickens too! I named them: Miss Macbeth, Glen Iris, the Grim Cheeper and Terminator. There was another one, but she died ): I was going to name her Sephiroth. Give my dead chicken the honour of having another chicken live out their life with her name? ): BQ 2: Mango Juice. I crave mango juice whenever I am feeling hot/angry/sad/worried/sweaty. ;D BQ 3: Ssossity. Its an arbitrary word, used whenever you have nothing else to ssossity, because you're way too ssossity to ssossity.

Answer 4

A cube's length, width, and height would all be equal. If it's a 3-D rectangle, then it's a rectangular prism.

Answer 5

A 3-D figure with all right angles ( so that all faces are rectangles ) is called a "Right Rectangular Prism"...

Answer 6

a 3-d rectangle is a cuboid and not a cube.

Answer 7

a rectangle cant be considered as a cube because the measure of the faces is not the same and in a cube all the sides are of the same size

Answer 8

Only if all the sides are equal, then it is called a cube. A rectangle with equal sides is called a square.

Answer 9

a 3-d rectangular box is called a rectangular prism check ya later ♥

Answer 10

I think it's called a rectangular cube or a box.

Answer 11

It wouldn't be a cube, because a cube has to have all its edges equal lengths. I'd call your "3D rectangle" a "shoebox". I'm sure mathematicians have a fancier sounding name though.

Answer 12

a 3-d rectangle is a prism, my friend

Answer 13

Rectangular Parallelepiped



or rectangular prism

Answer 14

If it's rectangular, it's called a prism.

Answer 15

A rectangle is considered a three-sided figure.

A cube is considered a four-sided figure and a

perfect square. They'll always be different and I'm not even a math major!

Answer 16

God, these people are clueless...it's called a paralellpiped or simply a rectangular solid...not a freaking prism or a cuboid...i don't even think cuboid is a word

Answer 17

It is called a rectangular prism.

Answer 18

Have you never heard of the "Euler brick", also called the "integral brick"?



http://mathworld.wolfram.com/EulerBrick.html



Mathematicians have sought such a brick where all three edges are integers, all three surface hypotenuses are integers, and the internal hypotenuse (of any side and any edge) is an integer.



So far, no brick with seven integers exists, although a brick with six has been found.

Answer 19

No, it is a cuboid, I'm sure that a prism is a 3d triangle

Answer 20

rectangular prism

Answer 21

It is called a parallelepiped, or more specifically, a prism?



^_^

Answer 22

actually what are describing is a cuboid...a rectangular box

Answer 23

yes , cube

Answer 24

rectangular prism is the term

Answer 25

its called a regular polyhedron

Answer 26

its a cuboid