A rectangular orchard of 1 hectare has a length of 125 meters and a width of 125 meters.
一个1公顷的长方形果园，长是125米，宽是多少米．
<gadget id="calculator">10_000 / 125</gadget>
<output>80</output>

<gadget id="calculator">1 * 80</gadget>
<output>80</output>

<result>80</result>