There is a cylindrical steel ingot with a base radius of 3cm and a volume of 141.3cm**3. Now it is necessary to process it into a conical part with the same volume and bottom area as the cylindrical ingot. What is the height of this conical part? (loss not counted)
有一个底面半径是3cm、体积是141.3cm**3的圆柱形钢锭，现要把它加工成同圆柱形钢锭体积相等、底面积也相等的圆锥形零件，这个圆锥形零件的高是多少？(损耗不计)
<gadget id="calculator">3.14 * 3 * 3</gadget>
<output>28.26</output>

<gadget id="calculator">141.3 / 28.26</gadget>
<output>5</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>