The area of a rectangle is 48 square decimeters, the length is 8 decimeters, what is the perimeter?
一个长方形的面积是48平方分米，长是8分米，周长是多少分米．
<gadget id="calculator">48 / 8</gadget>
<output>6</output>

<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<result>28</result>