A rectangular orchard covers an area of 8 hectares and is 400 meters long. What is the perimeter of the orchard in meters?
一个长方形果园占地8公顷，长为400米，这个果园的周长为多少米．
<gadget id="calculator">10_000 / 400</gadget>
<output>25</output>

<gadget id="calculator">8 * 25</gadget>
<output>200</output>

<gadget id="calculator">400 + 200</gadget>
<output>600</output>

<gadget id="calculator">600 * 2</gadget>
<output>1_200</output>

<result>1_200</result>