A car parking lot is 250 meters long and 80 meters wide. How many hectares does it cover?
一个汽车停车场，长250米，宽80米，占地多少公顷？
<gadget id="calculator">250 * 80</gadget>
<output>20_000</output>

<gadget id="calculator">20_000 / 10_000</gadget>
<output>2</output>

<result>2</result>