A cement factory manufactures 10 cube iron sheet communication pipeline pipes, the cross section of which is a square with a side length of 30 cm, and the total length of the pipe is 2 meters. How many square meters of iron sheet are needed in total?
水泥厂制10根正方体铁皮通讯管道管子，横截面为边长30厘米的正方形，管全长2米，共需多少平方米铁皮？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * 4 * 2 * 10</gadget>
<output>24</output>

<result>24</result>