The area of a rectangular piece of land is 180 square meters, the length of the rectangle is 20 meters, and how many meters is the width?
一块长方形地的面积是180平方米，长方形的长是20米，宽是多少米？
<gadget id="calculator">180 / 20</gadget>
<output>9</output>

<result>9</result>