1 square decimeter = 100 square centimeter
1 m2 = 100 square decimeter
1 m2 = 10000 cm2
1 m2 = 1000000 mm2
1 ha = 1 10,000 m2
1 km2 = 100 hectare =1100 million m2.
450,000 hectares = (4,500) hectares =(45) square kilometers
1 km2 = 100 hectare
1 ha = 100 ha
1 mu = 100 square meter
10000 square centimeter = 100 square decimeter
10000 square decimeter = 100 square meter
1 ten thousand square meters = 1 hectare, square kilometers
10000 hectares = 100 square kilometers
1 ha = 1 10,000 m2