The area of a triangular vegetable field is 270 square meters, and the height above the base is 15 meters. What is the length of the bottom of this vegetable field?
一块三角形菜地的面积是270平方米，量得底边上的高是15米，这块菜地的底边长是多少．
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">270 * (2/15)</gadget>
<output>36</output>

<result>36</result>