A cone has a base circumference of 18.84 cm and a height of 4 cm. What is its volume in cm**3.
一个圆锥的底面周长是18.84cm，高是4cm．它的体积是多少cm**3．
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

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

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

<gadget id="calculator">3.14 * 9 * 4 * (1/3)</gadget>
<output>37.68</output>

<result>37.68</result>