A rectangular vegetable plot has the same area as a square one. It is known that the side length of the square vegetable plot is 18 meters, and the length of the rectangular vegetable plot is 36 meters. What is the perimeter of the rectangular vegetable plot?
一块长方形菜地与一块正方形菜地面积相等，已知正方形菜地的边长是18米，长方形菜地的长是36米，这个长方形菜地的周长是多少？
<gadget id="calculator">18 / 36</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">18 * (1/2)</gadget>
<output>9</output>

<gadget id="calculator">36 + 9</gadget>
<output>45</output>

<gadget id="calculator">45 * 2</gadget>
<output>90</output>

<result>90</result>