1. The page size is 12 by 12 inches, with 0.75-inch margins on all four sides.
2. Subtract the margins from the page size to get the usable area: \(12 - 2 \times 0.75 = 10.5\) inches.
3. The longest dimension of India is 3,214 kilometers (north to south).
4. To fit this dimension exactly within the usable area, set up the equation where the longest dimension of India (3,214 km) equals 10.5 inches on the map.
5. The scale \(k\) (kilometers per inch) is \(\frac { 3214 \text { km} } { 10.5 \text { inches} } \).

Supplemental Knowledge

As with creating any scale model, such as a map, creating one requires mastering how to transform real world dimensions into manageable sizes while keeping proportions intact. This involves using ratios correctly across units of measurement.

Theory in Practice

Consider what it would be like if you were trying to design a garden: fitting different plants within an area without overcrowding. By making accurate scale drawings of every aspect of the area where plants will go, you can accurately plan their placement, giving each the room to grow as intended. Uche applies this same principle when fitting India onto one atlas page.

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