The radius of the base of the cone is 6cm and the height is 20cm. What is its volume in cm**3.
圆锥的底面半径是6cm，高是20cm，它的体积是多少cm**3．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">(1/3) * 3.14 * 36 * 20</gadget>
<output>753.6</output>

<result>753.6</result>