The perimeter of a square is 36 cm. Cut it along the diagonal and translate it to form a parallelogram. What is the area of the parallelogram in square centimeters?
一个正方形的周长是36厘米，把它沿对角线剪开平移后补成一个平行四边形，这个平行四边形的面积是多少平方厘米
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">9 * 9</gadget>
<output>81</output>

<result>81</result>