There is a trapezoidal orchard, its upper base is 110 meters, its lower base is 160 meters, and its height is 80 meters. What is the area of this orchard?
有一块梯形的果园，它的上底是110米，下底是160米，高80米，这个果园的面积是多少？
<gadget id="calculator">110 + 160</gadget>
<output>270</output>

<gadget id="calculator">80 / 2</gadget>
<output>40</output>

<gadget id="calculator">270 * 40</gadget>
<output>10_800</output>

<result>10_800</result>