A triangular vegetable field has a base length of 5.4 meters and a height of 3.5 meters. What is the area in square meters?
一块三角形菜地，底边长5.4米，高长3.5米，面积是多少平方米？
<gadget id="calculator">3.5 / 2</gadget>
<output>1.75</output>

<gadget id="calculator">5.4 * 1.75</gadget>
<output>9.45</output>

<result>9.45</result>