A conical part has a base diameter of 10 cm and a height of 3 cm. What is the volume of this part in cubic centimeters?
一个圆锥形零件，它的底面直径是10厘米，高是3厘米，这个零件的体积是多少立方厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">(1/3) * 3.14 * 25 * 3</gadget>
<output>78.5</output>

<result>78.5</result>