A conical iron block is put into a cylindrical bucket with a bottom area of 12.56 decimeters, and the water level rises by 2 decimeters. What is the volume of this conical block of iron in cubic decimeters?
把一个圆锥形铁块放入底面积是12.56平方分米的圆柱形水桶内，水面上升2分米．这个圆锥形铁块的体积是多少立方分米．
<gadget id="calculator">12.56 * 2</gadget>
<output>25.12</output>

<result>25.12</result>