A conical pile of sand has a circumference of 21.98 meters and a height of 1.5 meters. How many cubic meters does this pile of sand have?
一个圆锥形的沙堆，底面周长21.98米，高1.5米，这堆沙有多少立方米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">21.98 / 3.14 / 2</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 ** 2</gadget>
<output>12.25</output>

<gadget id="calculator">(1/3) * 3.14 * 12.25 * 1.5</gadget>
<output>19.2325</output>

<result>19.2325</result>