ANSWER
[tex]135,000\text{ }m^2[/tex]
EXPLANATION
We want to find the area of the rectangular field.
The area of a rectangle is given by:
[tex]A=L*W[/tex]
where L = length
W = width
To find the area of the field in square meters, we first have to convert its length and width from kilometers to meters as follows:
[tex]\begin{gathered} 1km=1000m \\ \\ 0.45km=0.45*1000=450m \\ \\ 0.3km=0.3*1000=300m \end{gathered}[/tex]
Therefore, the area of the rectangular field is:
[tex]\begin{gathered} A=450*300 \\ \\ A=135,000\text{ }m^2 \end{gathered}[/tex]
That is the answer.
