The outer diameter of a car wheel is 50 cm, and it rotates 360 times per minute when driving. How many meters does the car travel per minute? (The value of π is 3.14)
一辆轿车的车轮外直径是50厘米，行驶时每分钟转360周．这辆轿车每分钟行驶多少米？(π值取3.14)
<gadget id="calculator">360 / 100</gadget>
<output>18/5 = around 3.6</output>

<gadget id="calculator">3.14 * 50 * (18/5)</gadget>
<output>565.2</output>

<result>565.2</result>