Length can be measured either way. The actual definition of length is the longest dimension.
A shape that is two units horizontal and three units vertical will have a length of 3, and in this case, the length is measured vertical. At the same time, a shape that is three units horizontal and two units vertical will also have a length of 3, but in this case, the length is measured horizontal.
Many people make the mistake of thinking that length is always horizontal or always vertical. This is incorrect, however. The easiest way to see that this is false is to rotate the shape 90 degrees; this causes the length to change to what was before the width, and as such, length is not consistent, even though the shape is the same. Length is always the longest dimension. As such, width is always the dimension that makes a (two-dimensional) right angle with the length. This will always just be the other dimension in two-dimensional objects.
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Nevada's horizontal width and vertical length is ...
The aspect ratio of a computer monitor or a television screen is its horizontal length divided by its vertical length, both measured in the same units.
The operation in which we measure our desired vertical length and horizontal length with measuring tools (for example;scale,tri-square,vernier calliper, screw gauge,etc. ) and mark that measured vertical length and horizontal length by marking tools for example;scriber, etc. on our metal piece, is called measuring and marking operation.
This ellipse is centered at the origin and has a horizontal axis of length 26 and a vertical axis of length 12 What is its equation?
If one of the two variables is independent (or explanatory) then it goes on the horizontal axis. Otherwise you do whatever you like.