There is a parallelogram billboard with a base of 8 meters and a height of 35 decimeters. If paint is used to paint this billboard, 0.6 kg of paint is used per square meter, how many kg of paint is needed at least?
有一块平行四边形的广告牌，底是8米，高是35分米．如果用油漆刷这块广告牌，每平方米用油漆0.6千克，至少需要多少千克油漆？
<gadget id="calculator">35 / 10</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">8 * (7/2) * 0.6</gadget>
<output>16.8</output>

<result>16.8</result>