A cone with a height of 9 decimeters is broken, and after melting and casting, it becomes a cylinder with the same base as it. What is the height of this cylinder?
把一个高为9分米的圆锥体钢坏，经熔铸后，成为一个与它等底的圆柱体，这个圆柱体的高是多少．
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>