The diameter of a circular swimming pool is 120 meters, what is the area of the swimming pool in square meters?
一个圆形游泳池的直径是120米，这个游泳池的面积是多少平方米？
<gadget id="calculator">120 / 2</gadget>
<output>60</output>

<gadget id="calculator">60 ** 2</gadget>
<output>3_600</output>

<gadget id="calculator">3.14 * 3_600</gadget>
<output>11_304</output>

<result>11_304</result>