The side length of a piece of square glass is 0.4 meters. If the price per square meter is 12 yuan, how much is this piece of glass worth?
一块正方形玻璃的边长是0.4米，如果每平方米售价是12元，这块玻璃价值多少元？
<gadget id="calculator">0.4 * 0.4 * 12</gadget>
<output>1.92</output>

<result>1.92</result>