conical hammer has a base radius of 3 cm and a height of 5 cm. What is its volume?
一个圆锥形铁锤，底面半径是3厘米，高为5厘米，它的体积是多少？
<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 * 5</gadget>
<output>47.1</output>

<result>47.1</result>