The perimeter of a square is 36 square centimeters, the width of a rectangle is the same as the sides of the square, and the length is three times the width, what is the area of the rectangle?
一个正方形的周长是36平方厘米，一个长方形的宽与这个正方形的边长一样，长是宽的3倍，长方形的面积是多少平方厘米？
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">27 * 9</gadget>
<output>243</output>

<result>243</result>