Draw the largest triangle in a rectangle with a length of 8 cm and a perimeter of 22 cm. What is the area of this triangle in square centimeters?
在一个长8厘米，周长是22厘米的长方形内画一个最大的三角形，这个三角形的面积是多少平方厘米？
<gadget id="calculator">22 / 2</gadget>
<output>11</output>

<gadget id="calculator">11 - 8</gadget>
<output>3</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>