To put a wire hoop on the outside of a cylindrical bucket with a bottom radius of 14 cm, and the joint part is 6 cm, how many centimeters of wire is needed?
要在底面半径是14厘米的圆柱形水桶外面打上一个铁丝箍，接头部分是6厘米，需用铁丝多少厘米．
<gadget id="calculator">3.14 * 2 * 14</gadget>
<output>87.92</output>

<gadget id="calculator">87.92 + 6</gadget>
<output>93.92</output>

<result>93.92</result>