There is a teepee with a base diameter of 5 meters and a height of 3.6 meters. What is the volume of this tent in meters**3?
有一座圆锥形帐篷，底面直径是5米，高是3.6米，这座帐篷的体积是多少米**3？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">(1/3) * 3.14 * (25/4) * 3.6</gadget>
<output>23.55</output>

<result>23.55</result>