The construction site needs 80 triangular iron plates. The base of this iron plate is 0.6 meters and the height is 0.4 meters. How many square meters of iron plates are needed in total?
建筑工地需要80块三角形铁板，这种铁板的底是0.6米，高是0.4米，一共需要多少平方米的铁板？
<gadget id="calculator">0.4 / 2</gadget>
<output>0.2</output>

<gadget id="calculator">0.6 * 0.2 * 80</gadget>
<output>9.6</output>

<result>9.6</result>