2. Why we reduce a map?

Large scale maps are required for urban planning. These provide large space in which detailed information and even the smallest points can be shown. Therefore, at times map is quite big but we have to reduce it according to size of paper and need so that major features may be concentrated upon. Measure the length and width of the map. Divide the length and width by 2 if you are asked to reduce the map to half of its original size. For example, if the length and width of a map are 30cm and 20cm respectively, such a map should measure 15cm by 10cm if reduced to half its size.

b. niger

explanation: