In the world of ice and snow, in order to prevent the car from skidding, the driver often reinforces a circle of ice and snow snow chains on the car tires. The diameter of a car tire is 60 cm. How many centimeters of ice and snow snow chains should the driver master reinforce on each tire?
冰天雪地，司机师傅为了防止汽车打滑经常在汽车轮胎上加固一圈冰雪防滑链，一辆汽车的轮胎直径为60厘米，司机师傅应在每个轮胎上加固多少厘米的冰雪防滑链？
<gadget id="calculator">3.14 * 60</gadget>
<output>188.4</output>

<result>188.4</result>