trapezoidal steel plate, the upper base is 1.6 meters long, the lower base is 2.4 meters long, and the height is 1.25 meters. If the steel plate is 26.4 kg per square meter, how many kilograms does this steel plate weigh?
一块梯形钢板，上底长1.6米，下底长2.4米，高1.25米，如果每平方米钢板26.4公斤，这块钢板重多少千克？
<gadget id="calculator">1.6 + 2.4</gadget>
<output>4</output>

<gadget id="calculator">1.25 / 2</gadget>
<output>0.625</output>

<gadget id="calculator">4 * 0.625 * 26.4</gadget>
<output>66</output>

<result>66</result>