The side length of a square table is 80 cm, and a glass with the same size as the table is required. What is the area of the glass?
一张方桌面的边长是80厘米，要配一个与桌面一样大的玻璃，这块玻璃的面积是多少？
<gadget id="calculator">80 * 80</gadget>
<output>6_400</output>

<result>6_400</result>