A triangular paddy field covers an area of 12 hectares. If its base is 400 meters, what is its height?
一块三角形的水田占地12公顷，如果它的底是400米，那么高是多少米？
<gadget id="calculator">12 * 10_000</gadget>
<output>120_000</output>

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

<gadget id="calculator">120_000 * (1/200)</gadget>
<output>600</output>

<result>600</result>