The area of the base of a cone is 12.56dm**2 and the height is 9dm, what is the volume of the cone dm**3.
一个圆锥的底面积是12.56dm**2，高是9dm，则这个圆锥的体积是多少dm**3．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 12.56 * 9</gadget>
<output>37.68</output>

<result>37.68</result>