The diameter of the front wheel of a bicycle is 0.6 meters. When riding from one end of the road to the other end, the front wheel turns 3000 times. How long is the road?
一辆自行车的前轮直径是0.6米，从公路的一端骑到另一端，前轮转了3000圈，这条公路长多少米？
<gadget id="calculator">3.14 * 0.6 * 3_000</gadget>
<output>5_652</output>

<result>5_652</result>