A trapezoidal steel plate with an upper base of 12 decimeters, a lower base of 16 decimeters, and a height of 8 decimeters. If the steel plate weighs about 37 kilograms per square decimeter, how many kilograms does this steel plate weigh?
一块梯形钢板，上底12分米，下底16分米，高8分米．如果每平方分米钢板约重37千克，这块钢板重多少千克？
<gadget id="calculator">12 + 16</gadget>
<output>28</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">28 * 4 * 37</gadget>
<output>4_144</output>

<result>4_144</result>