The Golden Triangle Supermarket is going to make a triangular billboard with a base length of 3.6 meters and a height of 2.4 meters. If the two sides of the billboard are to be painted, 0.5 kilograms of paint is used per square meter. How many kilograms of paint are needed in total?
金三角超市要做一块底边长3.6米，高2.4米的三角形广告牌，如果要油漆这块广告牌的两面，每平方米用油漆0.5千克，共需油漆多少千克？
<gadget id="calculator">2.4 / 2</gadget>
<output>1.2</output>

<gadget id="calculator">3.6 * 1.2 * 2 * 0.5</gadget>
<output>4.32</output>

<result>4.32</result>