A piece of wood is 8m long and has a cross-sectional area of 0.9㎡. What is the volume of this piece of wood?
一根木料，长8m，横截面的面积是0.9㎡，这根木料的体积是多少？
<gadget id="calculator">0.9 * 8</gadget>
<output>7.2</output>

<result>7.2</result>