A piece of glass with a length of 2.4 meters and a width of 1.2 meters is broken on the school bulletin board. How big a piece of glass needs to be replaced?
学校宣传栏上有一块长2.4米，宽1.2米的玻璃碎了，需要更换多大的一块玻璃？
<gadget id="calculator">2.4 * 1.2</gadget>
<output>2.88</output>

<result>2.88</result>