The scale of a map allows a reader to calculate the size, height and dimensions of the features shown on the map, as well as distances between different points. The scale on a map is the ratio between ...

There are 9 cm between points A and B. So we must multiply 9 by 18,000 to get 162,000 cm. Since the question asks for the answer to be in metres, we must now divide by 100. The answer is therefore ...