A cylinder, shaved off 56 cubic decimeters, just cuts into a cone with its base and height. What is the volume of this cone in cubic decimeters.
一个圆柱体，削去56立方分米，正好削成与它等底等高的圆锥体．这个圆锥体的体积是多少立方分米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">56 / 2</gadget>
<output>28</output>

<result>28</result>