Put the copper ball into a cylindrical bucket filled with water, and the result is 6.28 liters of water. If a copper ball is cast into a cylinder with a bottom diameter of 2 decimeters, what is its height?
把铜球放入装满水的圆柱形的桶里，结果排出水6.28升．若将铜球铸成底面直径为2分米的圆柱体，它高多少分米．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">6.28 / 3.14</gadget>
<output>2</output>

<result>2</result>