The diameter of a bicycle wheel is 52 cm. How many meters does the wheel travel in one revolution?
一个自行车车轮的直径是52厘米，车轮转动一周，大约前进多少米．
<gadget id="calculator">3.14 * 52</gadget>
<output>163.28</output>

<gadget id="calculator">163.28 / 100</gadget>
<output>1.6328</output>

<result>1.6328</result>