A triangular vegetable field is 18 meters high and the bottom is 1.5 times as long as the high. What is the area of this triangular vegetable field in square meters?
一块三角形菜地，高是18米，底的长度是高的1.5倍，这块三角形的菜地的面积是多少平方米？
<gadget id="calculator">18 * 1.5</gadget>
<output>27</output>

<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<gadget id="calculator">27 * 9</gadget>
<output>243</output>

<result>243</result>