A pile of sand is in the shape of a cone, the circumference of the bottom is 9.42m, and the height is 1.5m. What is the volume of this pile of sand in cubic meters?
一堆沙子呈圆锥形，测量其底面周长是9.42m，高1.5m．这堆沙子的体积是多少立方米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9.42 / 3.14 / 2</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 ** 2</gadget>
<output>2.25</output>

<gadget id="calculator">(1/3) * 3.14 * 2.25 * 1.5</gadget>
<output>3.5325</output>

<result>3.5325</result>