pile of coal is in the shape of a cone with a base diameter of 6 meters and a height of 3 meters. If these coals are put into a cylindrical coal tank with a base diameter of 3 meters, how many meters will the height be?
一堆煤成圆锥形，底面直径是6米，高是3米，把这些煤放进一个底面直径是3米的圆柱形煤罐里，高会是多少米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<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">3.14 * 2.25</gadget>
<output>7.065</output>

<gadget id="calculator">3 / 7.065</gadget>
<output>0.424628</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.424628</gadget>
<output>3.999996</output>

<result>3.999996</result>