Posted by Hannah on Wednesday, October 17, 2012 at 10:43pm.
ha is an area measure
km is a length measure
1 ha = 10,000m^2
850 ha = 8,500,000 m^2
1km = 1000m
1km^2 = (1000m)^2 = 1,000,000 m^2
so, 850 ha = 8.5 km^2
so, your answer is correct, but your conversion factor should have been written
1km^2 / 100ha
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