A circular pool with a diameter of 10 meters, Xiaoxiao walked around the pool, how many meters did she walk?
一个圆形水池，直径是10米，笑笑沿水池走了一圈，她大约走了多少米？
<gadget id="calculator">3.14 * 10</gadget>
<output>31.4</output>

<result>31.4</result>