A square table has a perimeter of 320 cm. What is the area of the glass in square decimeters if it needs to be equipped with glass as large as the desktop?
一张正方形的桌子周长为320厘米．要配上与桌面同样大的玻璃，玻璃的面积是多少平方分米？
<gadget id="calculator">320 / 4 / 10</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>