The base of a triangle is 3 decimeters and the height is 1.2 times the base. What is its area?
一个三角形的底是3分米，高是底的1.2倍，它的面积是多少．
<gadget id="calculator">3 * 1.2</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 / 2</gadget>
<output>1.8</output>

<gadget id="calculator">3 * 1.8</gadget>
<output>5.4</output>

<result>5.4</result>