A triangular vegetable field harvests 1440 kg of vegetables in total. It is known that the harvest per square meter is 12 kg. The height of the triangular vegetable field is 6 meters. How many meters is the bottom?
一块三角形的菜地共收蔬菜1440千克，已知每平方米收12千克，三角形菜地的高是6米，底是多少米？
<gadget id="calculator">1_440 / 12</gadget>
<output>120</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">120 * (1/3)</gadget>
<output>40</output>

<result>40</result>