Paint a triangular billboard with paint, the bottom is 12.5 meters, and the height is 6.4 meters. If 0.6 kilograms of paint is used per square meter and 12 yuan per kilogram of paint, how much will it cost to paint this billboard?
用油漆粉刷一块三角形广告牌，底是12.5米，高是6.4米．如果每平方米用油漆0.6千克，每千克油漆12元，粉刷完这块广告牌需要多少元？
<gadget id="calculator">6.4 / 2</gadget>
<output>3.2</output>

<gadget id="calculator">12.5 * 3.2 * 0.6 * 12</gadget>
<output>288</output>

<result>288</result>