The school holds a sports meeting, and a pile of yellow sand is brought in. The diameter of the conical yellow sand bottom is 3 meters, and the height is 1.2 meters. How many cubic meters is the volume of this pile of sand?
学校举办运动会，运来了一堆黄沙，这圆锥形黄沙底面直径3米，高1.2米，这堆沙的体积有多少立方米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">(1/3) * 3.14 * (9/4) * 1.2</gadget>
<output>2.826</output>

<result>2.826</result>