The area of a circle is 9.42cm**2, what is the area of the smallest square needed to cut out the circle in cm**2?
一个圆的面积为9.42cm**2，则剪出这个圆需要的最小正方形的面积是多少cm**2．
<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>