A conical camping tent has a base radius of 3 meters and a height of 2.4 meters. How many cubic meters is the space in the tent?
一个近似于圆锥形的野营帐篷，它的底面半径是3米，高是2.4米，帐篷里的空间约是多少立方米．
<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 * 2.4</gadget>
<output>22.608</output>

<result>22.608</result>