A conical part, the base radius is 10dm, the height is half of the radius, what is the volume of this part in dm**3.
一个圆锥形零件，底面半径是10dm，高是半径的一半，这个零件的体积是多少dm**3．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * 100 * 5 * (1/3)</gadget>
<output>523.333333</output>

<result>523.333333</result>