There is a circular pool in the park. Uncle Li runs around the pool 20 times every morning. If the diameter of the circular pool is 38 meters, how many meters does Uncle Li run every morning?
公园里有一个圆形的水池，李大爷每天早晨绕着水池跑20圈，如果圆形水池的直径是38米，李大爷每天早晨跑多少米？
<gadget id="calculator">3.14 * 38 * 20</gadget>
<output>2_386.4</output>

<result>2_386.4</result>