The cross section of the embankment is trapezoidal, the upper base is 2.6 meters long, the lower base is 3.5 meters long, and the height is 2 meters. What is the area of the cross-section of the dam in square meters?
堤坝的横截面是个梯形，上底长2.6米，下底长3.5米，高2米．这座堤坝横截面的面积是多少平方米？
<gadget id="calculator">2.6 + 3.5</gadget>
<output>6.1</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">6.1 * 1</gadget>
<output>6.1</output>

<result>6.1</result>