A cone has a base diameter of 6 cm and a height of 12 cm. What is its volume in cubic centimeters?
一个圆锥底面直径是6厘米，高是12厘米．它的体积是多少立方厘米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<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 * 12</gadget>
<output>113.04</output>

<result>113.04</result>