A cone has a base radius of 3 cm and a height of 6 cm. What is the volume of the cone in cm**3.
一个圆锥底面半径3cm，高6cm，这个圆锥的体积是多少cm**3．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) * 3.14 * 9 * 6</gadget>
<output>56.52</output>

<result>56.52</result>