A trapezoidal paddy field, the upper base is 125m, 40m longer than the lower base, and the height is 24m. What is the area of this paddy field in square meters?
一块梯形稻田，上底125m，比下底多40m，高24m．这块稻田的面积是多少平方米？
<gadget id="calculator">125 - 40</gadget>
<output>85</output>

<gadget id="calculator">85 + 125</gadget>
<output>210</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">210 * 12</gadget>
<output>2_520</output>

<result>2_520</result>