Around a circular pool with a diameter of 6 meters, build a square square that is 2 meters away from the pool. What is the area of this square in square meters?
在一个直径是6米的圆形水池周围，修一个离水池最近点是2米的正方形广场．这个广场的面积是多少平方米？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<gadget id="calculator">100 - 28.26</gadget>
<output>71.74</output>

<result>71.74</result>