Cut a cone of wood with a height of 3dm along its height, the section is just an isosceles right triangle, what is the volume of this cone in dm**3.
把一个高为3dm的圆锥体木料沿着它的高剖开，剖面刚好是一个等腰直角三角形，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">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 3</gadget>
<output>28.26</output>

<result>28.26</result>