The base of a triangular lawn is 18 meters, and the height is 15 meters. Now the base and height of the lawn are enlarged to 1.2 times the original size. What is the area of the lawn after the enlargement?
一块三角形草坪的底是18米，高是15米，现将草坪的底和高都扩大到原来的1.2倍，扩大后草坪的面积是多少？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">18 * 1.2</gadget>
<output>21.6</output>

<gadget id="calculator">15 * 1.2</gadget>
<output>18</output>

<gadget id="calculator">(1/2) * 21.6 * 18</gadget>
<output>194.4</output>

<result>194.4</result>