what is RF of a scale?
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A RF SCALE IS A REPRESENTATIVE FRACTION SCALE.
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The numerical scale of a map indicates the relationship of distance
measured on a map and the corresponding distance on the ground. This
scale is usually written as a fraction and is called the representative
fraction. The RF is always written with the map distance as 1 and is
independent of any unit of measure. (It could be yards, meters, inches,
and so forth. ) An RF of 1/50,000 or 1:50,000 means that one unit of
measure on the map is equal to 50,000 units of the same measure on the
ground.
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