Draw the largest circle in a square with a side length of 4 cm. If the circle is used as a base and a cone with a height of 6 cm is made out of cardboard, what is the volume of the cone?
在一个边长为4厘米的正方形里画一个最大的圆，如果以所画圆为一个底面，用纸板做成一个高为6厘米的圆锥，这个圆锥的体积是多少？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

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

<gadget id="calculator">3.14 * 4 * 6 * (1/3)</gadget>
<output>25.12</output>

<result>25.12</result>