There is a trapezoidal orchard, the upper base is 18.5m long, the lower base is 21.5m long, and the height is 14m. A total of 35 fruit trees are planted in this orchard. How many square meters does each fruit tree occupy on average?
有一块梯形的果园，上底长18.5m，下底长21.5m，高是14m．在这个果园里一共栽了35棵果树，平均每棵果树占地多少平方米？
<gadget id="calculator">18.5 + 21.5</gadget>
<output>40</output>

<gadget id="calculator">14 / 2 / 35</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 * (1/5)</gadget>
<output>8</output>

<result>8</result>