A square lawn has a side length of 20.5 meters. Xiaofang walked four times around the lawn. How many meters did she walk in total?
一个正方形的草坪，边长是20.5米，小芳沿着草坪四周走了4圈，她一共走了多少米？
<gadget id="calculator">20.5 * 4 * 4</gadget>
<output>328</output>

<result>328</result>