in most documentation the length comes 1st but it usually doesn't matter unless you are doing something other than adding or multiplying.
Length
Length comes first in measure quadrilaterals.
Either doesn't really matter.
length
length
it is lxwxh (width x hight)
They can come in any order.
First, you must know the length, the width and the height. Then you multiply all of them and you get the capacity.
It doesn't matter.
length
After looking at several sites the rugs were all describe by the shorter(width) first.
First, find a wallet. Then decide on the unit of measure you would like to use. Inches and centimeters are both very popular, with the latter especially fashionable when measuring fine European leather goods. With these two issues resolved, you are ready for a rewarding wallet-measuring experience!
You can do it whichever way is more convenient for you. The answer is the same either way.