The wheel diameter of a car is 80 cm, and it rotates 200 times per minute. This car passes a viaduct in 3 minutes. How many meters is the total length of the bridge?
一辆汽车的车轮直径是80厘米，每分钟转200周，这辆汽车3分钟通过一座高架桥，这座桥全长多少米？
<gadget id="calculator">3.14 * 0.8 * 200</gadget>
<output>502.4</output>

<gadget id="calculator">502.4 * 3</gadget>
<output>1_507.2</output>

<result>1_507.2</result>