Answer:
The actual area of the field in square kilometers is

Explanation:
Scale : 1 cm = 50000 km
Area of field on map =

Now , 1 cm = 5000 km

We are supposed to find the actual area of the field in square kilometers.
So, the actual area of the field in sq. km =

Actual area of the field in sq. km

Hence the actual area of the field in square kilometers is
