There are two paddy fields of different shapes with the same area. One is a parallelogram with a base of 18 meters and a height of 12 meters; the other is a triangle with a base of 36 meters. What is the height of this triangular rice field?
有两块不同形状的稻田，它们的面积相等．一块是平行四边形，底18米，高12米；另一块是三角形，它的底36米，这块三角形稻田的高是多少米？
<gadget id="calculator">2 / 36</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">18 * 12 * (1/18)</gadget>
<output>12</output>

<result>12</result>