There is a parallelogram-shaped orchard with a base of 800 meters and a height 250 meters shorter than the base. How many hectares does the whole orchard occupy?
有一块平行四边形的果园，它的底为800米，高比底短250米，整个果园占地多少公顷？
<gadget id="calculator">800 * 250</gadget>
<output>200_000</output>

<gadget id="calculator">200_000 / 10_000</gadget>
<output>20</output>

<result>20</result>