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**Hint:**We have to use the metric system to find the solution to the problem. We have hectare at one step down to square kilometer in the metric system. We find the relation of a hectare and square kilometers. We take a unitary system and multiply that with 80.2 to find the solution to the problem. We have hectare is one step down of square kilometer

**Complete step-by-step solution**

For the conversion, we take the help of a metric system. On the ladder of the metric system, a hectare is one step down of square kilometer.

We know that 1 hectare is equal to 0.01 square kilometers.

In the reverse case, we can say that 1 square kilometer is equal to 100 hectares.

We need to find the value of 80.2 square kilometers into a hectare.

So, the solution to the problem is the multiplication of 80.2 and 100.

**80.2 square km is equal to $80.2\times 100=8020$ hectare.**

**Note:**There is a difference between the term hectare and prefix hecto. Hecto is the prefix used to represent a hundred in the metric system of measurement but hectare is used for area measurement. We can say that 1 square kilometer is equal to 100 hectares and 1 kilometer is equal to 10 hectometres. At the time of making a conversion, we have to double-check whether it’s for area or length measurement. If we had taken the length measurement and multiplied it with h10 instead of 100, then the answer would have been $80.2\times 10=802$ which is also an option. It would have been hard to rectify.

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