Understanding the ratio of the map of the map Percent help you calculate the actual distance. So to choose the right type of vehicle for your map to explore the destination. If you walk, you should select the type of map scale of 1: 25,000. If driving, so choose one that has a ratio of 1: 190,000. The method of calculating the actual distance, once identified the path from point to point, using a ruler to measure the distance between these two points roughly then take some that data rate multiplied by the number of maps to figure out the actual distance to go.
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