There is a rectangular model, which is drawn into a parallelogram with a height of 4 cm. The perimeter of the original rectangle is 26 cm and the width is 5 cm. What is the area of the parallelogram in square centimeters?
有一个长方形模型，将它拉成平行四边形，高是4厘米．原来长方形的周长是26厘米，宽是5厘米，现在平行四边形的面积是多少平方厘米．
<gadget id="calculator">26 / 2</gadget>
<output>13</output>

<gadget id="calculator">13 - 5</gadget>
<output>8</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>