The distance between the two feet of the compass is 6 cm. What is the area of the circle drawn with this compass?
圆规两脚分开的距离是6厘米，用这个圆规画出的圆，它的面积是多少．
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>

<result>113.04</result>