Cut out a sector with a radius of 10 cm from paper to make a cone with a base diameter of 16 cm. Find the volume of the cone.
从纸上剪一个半径是10厘米的扇形做一个圆锥，圆锥的底面直径是16厘米．求圆锥的体积．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">(1/3) * 3.14 * 64 * 6</gadget>
<output>401.92</output>

<result>401.92</result>