What is the volume of a cone with a base radius of 5 cm and a height of 6 cm?
一个圆锥，底面半径是5厘米，高为6厘米，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">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">(1/3) * 3.14 * 25 * 6</gadget>
<output>157</output>

<result>157</result>