What are the advantages and disadvantages of using a rod of given length as a unit of length?
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Explanation:
Since in English measurements (Great
Britain and US at least) a "rod" is actually a
defined length of 16.5 feet, which is 1/320 of a
mile. Advantages of using some given rod as
a unit of length is that you can measure
anything against it. However, a disadvantage
is that, unless you have way to subdivide its
length, you will have problem with
measuring anything which is not an even
multiple of the length of the rod.
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