Answer:
The area of this square in hectares and square kilometers is 352.1 hectares, 3.521 square kilometers
Option (A) is true.
Explanation:
To express the area of the square in hectares and square kilometers, we need to convert the given area of 3521000m² to these units.
1 hectare is equal to 10,000 square meters, and 1 square kilometer is equal to 1,000,000 square meters.
To convert the area to hectares, we divide the given area by 10,000:
3521000m² / 10,000
= 352.1 hectares
To convert the area to square kilometers, we divide the given area by 1,000,000:
3521000m² / 1,000,000
= 3.521 square kilometers
Therefore,
Option (A) is true.