Put together 2 rectangular dining tables with a length of 100cm and a width of 50cm to form a square dining table. What is the area of this square dining table in square decimeters?
把2张长100cm，宽50cm的长方形餐桌拼成一个正方形餐桌．这个正方形餐桌的面积是多少平方分米？
<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">100 * 1</gadget>
<output>100</output>

<result>100</result>