What is the area of a triangle whose base is 3 decimeters and whose height is 1.2 decimeters?
一个三角形的底是3分米，高为1.2分米，面积是多少．
<gadget id="calculator">1.2 / 2</gadget>
<output>0.6</output>

<gadget id="calculator">3 * 0.6</gadget>
<output>1.8</output>

<result>1.8</result>