The area of a triangular piece of land is 0.8 hectares, its base is 400 meters, what is its height in meters?
一块三角形地的面积是0.8公顷，它的底是400米，它的高是多少米？
<gadget id="calculator">0.8 * 10_000</gadget>
<output>8_000</output>

<gadget id="calculator">2 / 400</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">8_000 * (1/200)</gadget>
<output>40</output>

<result>40</result>