Calculate R.F when the statement scale is 1cm =4km
To calculate the R.F (representative fraction), we need to use the following formula:
R.F. = Map distance / Ground distance
Since the statement scale is 1cm = 4km, the map distance is 1cm and the ground distance is 4km.
Thus,
R.F. = 1 cm / 4 km
We need to convert the ground distance to the same unit as the map distance, so we can convert 4km to 400,000 cm (1km = 100,000cm).
Therefore,
R.F. = 1 cm / 400,000 cm
Simplifying this fraction, we get:
R.F. = 1/400,000
Therefore, the R.F. of this map is 1/400,000.