The area of a triangular land is 0.5 hectares. It is known that its base is 250 meters and its height is in meters.
一块三角形地的面积是0.5公顷，已知它的底是250米，高是多少米．
<gadget id="calculator">0.5 * 10_000</gadget>
<output>5_000</output>

<gadget id="calculator">2 / 250</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">5_000 * (1/125)</gadget>
<output>40</output>

<result>40</result>