There is a circular flower bed with a radius of 10 meters in the garden. A cement road with a width of 2 meters should be laid around it. What is the area of this road in square meters?
花园里有一个半径为10米的圆形花坛，要在其周围铺设2米宽的水泥路，这条路的面积是多少平方米．
<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">12 ** 2</gadget>
<output>144</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">144 - 100</gadget>
<output>44</output>

<gadget id="calculator">3.14 * 44</gadget>
<output>138.16</output>

<result>138.16</result>