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Mikeyy · Answer 1 · 2023-10-11T06:27:15+0000

Given: A rectangular field with the dimension below:

$\begin{gathered} l=\text{length}=450m \\ w=\text{wide}=400m \end{gathered}$

To Determine: The area of the field in square kilometers

To find the area in square kilometers, first convert the dimension into kilometer.

$\begin{gathered} 1000m=1\operatorname{km} \\ xm=x*(1)/(1000)km \\ l=450m=450*(1)/(1000)km \\ l=0.45\operatorname{km} \end{gathered}$
$\begin{gathered} w=400m=400*(1)/(1000)km \\ w=0.4\operatorname{km} \end{gathered}$

The area of a rectangle is given by the formula is

$A_{\text{RECTANGLE}}=\text{length}* width$

Since the field is a rectangle, then the area of the field would be

$\begin{gathered} A_{\text{RECTANGULAR FIELD}}=length* width \\ A_{\text{RECTANGULAR FIELD}}=0.45\operatorname{km}*0.4\operatorname{km} \\ A_{\text{RECTANGULAR FIELD}}=0.18\operatorname{km}^2 \end{gathered}$

Hence, the area of the rectangular field is 0.18km²

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