A cuboid piece of wood is 12 meters long and its cross-sectional area is 0.3 square meters. What is the volume of this piece of wood?
一根长方体的木料，长12米，它的横截面积是0.3平方米，这根木料的体积是多少？
<gadget id="calculator">0.3 * 12</gadget>
<output>3.6</output>

<result>3.6</result>