Yuhong Primary School has a rectangular playground with an area of 4800 square meters and a width of 40 meters. What is its perimeter?
育红小学有一块长方形操场，它的面积为4800平方米，宽40米，它的周长是多少？
<gadget id="calculator">4_800 / 40</gadget>
<output>120</output>

<gadget id="calculator">120 + 40</gadget>
<output>160</output>

<gadget id="calculator">160 * 2</gadget>
<output>320</output>

<result>320</result>