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the latidunal and longitudinal extent is bigger than east and west extent. explain? please respond back......?

The latitudinal and longitudinal extent of India is 30 degrees. But the north south distance is larger than the east west distance. Why?

The latitudinal and longitudinal extent of India is almost the same degrees.i.e 30 degrees. But the north south distance  in Kilometers is 3214 and the east west distance is 2933 km. This is  because of the nature of the lines. The latitudes are parallel lines and the distance is fixed between any two points and will not vary according to the area or shape. The longitudes are not parallel lines and the distance between the lines vary from equator to the poles. The distance is maximum near the equator and minimum at the poles.