conical lead pendant is 8 decimeters high, 6 decimeters in diameter at the bottom, and weighs 4.5 kilograms of lead per cubic decimeter. How many kilograms does this lead pendant weigh in total? How many.
一个圆锥形铅坠高8分米，底面直径6分米，每立方分米铅重4.5千克，这个铅坠共重多少千克？多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 8 * 4.5</gadget>
<output>339.12</output>

<result>339.12</result>