The radius and height of the bottom surface of a conical sand pile are both 1.2 meters, and each cubic meter of sand weighs 1.7 tons. How many tons does this pile of sand weigh?
一个圆锥形沙堆的底面半径和高都是1.2米，每立方米沙重1.7吨，这堆沙重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1.2 ** 2</gadget>
<output>1.44</output>

<gadget id="calculator">(1/3) * 3.14 * 1.44 * 1.2</gadget>
<output>1.80864</output>

<gadget id="calculator">1.7 * 1.80864</gadget>
<output>3.074688</output>

<result>3.074688</result>