The length of the rectangular flower bed is 40.2 meters and the width is 25.8 meters. How long is the fence around the flower bed?
长方形花坛的长是40.2米，宽是25.8米．这个花坛四周的篱笆长多少米？
<gadget id="calculator">40.2 + 25.8</gadget>
<output>66</output>

<gadget id="calculator">66 * 2</gadget>
<output>132</output>

<result>132</result>