A billboard is in the shape of a parallelogram, with a base of 12.5m and a height of 6.4m. If the billboard is to be painted with paint, 0.6kg of paint is needed per square meter. How many kilograms of paint are needed in total?
一广告牌的形状是平行四边形，底是12.5m，高是6.4m，现要用漆涂这块广告牌，每平方米需要用漆0.6kg，共需要多少千克油漆？
<gadget id="calculator">12.5 * 6.4 * 0.6</gadget>
<output>48</output>

<result>48</result>