A rectangular steel plate is 6.5 meters long and 4.5 meters wide, if the steel plate weighs 7.8 kg per square meter. How much does this steel plate weigh?
一块长方形钢板，长6.5米，宽4.5米，如果每平方米钢板重7.8千克．这块钢板重多少千克？
<gadget id="calculator">6.5 * 4.5 * 7.8</gadget>
<output>228.15</output>

<result>228.15</result>