path with a width of 2 meters is paved around a square flowerbed, and the area of the path is 100 square meters. What is the area of the square garden in square meters?
一个正方形花圃四周铺一条2米宽的小路，小路的面积是100平方米．正方形花圃的面积是多少平方米？
<gadget id="calculator">2 * 2 * 4</gadget>
<output>16</output>

<gadget id="calculator">100 - 16</gadget>
<output>84</output>

<gadget id="calculator">84 / 4 / 2</gadget>
<output>21/2 = around 10.5</output>

<gadget id="calculator">(21/2) * (21/2)</gadget>
<output>441/4 = around 110.25</output>

<result>441/4 = around 110.25</result>