Answer:
Area of the rectangular field in kilometers is 0.09

Step-by-step explanation:
We know that 1 kilometers = 1000 meters
since we need to find the area in unit of kilometers
therefore converting length and width into kilometers
1000 meters = 1 kilometers
300 meters =

Likewise width = 0.3 km
Area = length x width
= 0.3km x 0.3 km
= 0.09
