Uncle Liu planted a trapezoidal lawn, the upper base is 45 meters long, the lower base is 65 meters long, and the height is 40 meters. If the price of lawn per square meter is 8 yuan, how much can this lawn be sold for?
刘大叔种植了一块梯形草坪，上底长45米，下底长65米，高40米．如果每平方米的草坪价格为8元，这块草坪可以卖多少元？
<gadget id="calculator">45 + 65</gadget>
<output>110</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">110 * 20 * 8</gadget>
<output>17_600</output>

<result>17_600</result>