rectangle and a square have the same perimeter. Given that the perimeter of the square is 48 cm, which is three times the length of the rectangle, what is the area of the rectangle?
一个长方形和一个正方形的周长相等．已知正方形的周长为48厘米，它是长方形长的3倍，长方形的面积是多少？
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">24 - 18</gadget>
<output>6</output>

<gadget id="calculator">18 * 6</gadget>
<output>108</output>

<result>108</result>