The circumference of a circular flower bed is 188.4 meters. There is a 2-meter-wide path around the flower bed. Stainless steel railings should be placed around the path. How many meters is the railing?
一个圆形花坛的周长是188.4米，花坛的一周有一条2米宽的小路，要在小路的外周围上不锈钢栏杆．栏杆长多少米？
<gadget id="calculator">188.4 / 3.14 / 2</gadget>
<output>30</output>

<gadget id="calculator">30 + 2</gadget>
<output>32</output>

<gadget id="calculator">3.14 * 2 * 32</gadget>
<output>200.96</output>

<result>200.96</result>