Find \[1k{m^2} = \ldots \ldots {m^2}\]

Hint: In the given question, we are asked to find the relation between \[1k{m^2}\] and a \[{m^2}\] . For that, we will take the relation between a kilometer and a metre. After that we will square both the values to reach the desired solution of the problem.

Complete step-by-step answer:
As we already know that,
 \[1km = 1,000m\]
Squaring both sides, we get,
 \[
  1k{m^2} = {\left( {1,000m} \right)^2} \\
   \Rightarrow 1k{m^2} = 1,000,000{m^2} \\
 \]
Therefore, \[1k{m^2} = \underline {1,000,000} {m^2}\]

Note: \[k{m^2}\] is or square kilometer is a multiple of square metres. It is the S.I. unit of area or surface area. We often use this unit in our daily life to measure the area of land, parks, malls, buildings, etc. \[\]