If you want to plant trees around a square fish pond with a perimeter of 200 meters (all four corners should be planted), if two adjacent trees are 5 meters apart, how many trees should be planted in total?
要在一个周长是200米的正方形鱼塘四周栽树(四个角上都要栽)，如果相邻两棵树相距5米，一共要栽多少棵树？
<gadget id="calculator">200 / 5</gadget>
<output>40</output>

<result>40</result>