The circumference of the base of a cone is 25.12 cm and the height is 3 cm. What is the volume of the cone in cubic centimeters?
一个圆锥的底面周长是25.12厘米，高是3厘米，这个圆锥的体积是多少立方厘米．
<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

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

<gadget id="calculator">3.14 * 16 * 3 * (1/3)</gadget>
<output>50.24</output>

<result>50.24</result>