A water pipe has a diameter of 2 cm and the velocity of water in the pipe is 18 cm per second. A classmate went to wash his hands and forgot to turn off the tap when he left. How many liters of water will be wasted in 5 minutes?
一个自来水管直径2厘米，水管内水的流速是每秒18厘米．一个同学去洗手，走时忘记了关掉水龙头．这样5分钟要浪费多少升水．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">18 * 5 * 60</gadget>
<output>5_400</output>

<gadget id="calculator">5_400 / 1_000</gadget>
<output>27/5 = around 5.4</output>

<gadget id="calculator">3.14 * 1 * (27/5)</gadget>
<output>16.956</output>

<result>16.956</result>