The length and width of one are all 10 centimeters, and height is 15 centimetres, and a part of water rectangular shape tank is equipped with, and a bottom surface diameter is 20 centimetres, and height is the cone plumb weight of 9 centimeters above the water, when the plumb bob goes out from the water After that, how many centimeters did the water in the container drop?
一个的长和宽都为10厘米，高为15厘米装有一部分水长方形的形水槽，水中方着一个底面直径为20厘米，高为9厘米的圆锥体铅锤，当铅锤从水中去出后，容器中的水下降了几厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">9 / 100</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">(1/3) * 3.14 * 100 * (9/100)</gadget>
<output>9.42</output>

<result>9.42</result>