A piece of iron cone is completely submerged in a cylindrical bucket with a bottom area of 6.28 decimeters, and the water level rises by 1.5 decimeters. What is the volume of this piece of iron cone?
将一块圆锥体铁块完全浸没在底面积为6.28平方分米的圆柱形水桶中，水面上升了1.5分米，求这块圆锥体铁块的体积是多少？
<gadget id="calculator">6.28 * 1.5</gadget>
<output>9.42</output>

<result>9.42</result>