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Why is writing only kilometres wrong for India's area?

Answer and explanation

Correct answer: Because square kilometre is needed for area

The governing measurement concept is the difference between length and area. A kilometre, written km, measures a one-dimensional distance, such as the distance between two places or the length of a boundary. Area measures a two-dimensional surface, so the unit must be a square unit: square kilometre, written km². One km² represents a square measuring 1 km by 1 km, and its numerical size is obtained by multiplying the two lengths. Therefore option B is correct. Options A and C misunderstand the purpose of a kilometre, while option D confuses a possible comparative expression with the basic unit of area.

Related tags

Square KilometreArea MeasurementIndia AreaUnitsIndia’s Size And AreaIndia S Size And AreaIndia LocationGeography

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