piece of conical steel scrap with a base radius of 3 decimeters and a height of 8 decimeters is melted and cast into a square steel bar with a side length of 2 centimeters in cross section. What is the length of the cast steel rod in meters.
把一块底面半径是3分米，高是8分米的圆锥体废钢，熔铸成一条横截面是边长2厘米的正方形钢条．铸成的钢条长是多少米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) ** 2</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(1/3) * 3.14 * (9/100) * (4/5)</gadget>
<output>0.07536</output>

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">(1/50) * (1/50)</gadget>
<output>1/2_500 = around 0.0004</output>

<gadget id="calculator">0.07536 / (1/2_500)</gadget>
<output>188.4</output>

<result>188.4</result>