A piece of parallelogram land has a base of 25 meters and a height of 12 meters, and 28 kilograms of vegetables are harvested per square meter. How many kilograms are harvested in total?
一块平行四边形的地，底是25米，高是12米，每平方米收青菜28千克，一共收多少千克？
<gadget id="calculator">25 * 12 * 28</gadget>
<output>8_400</output>

<result>8_400</result>