Submerge an iron cone in a cylindrical pool with a base circumference of 6.28 meters and a height of 6 meters. The water level rose by 0.3 meters. What is the volume of this cone?
把一个铁圆锥浸没在一个底面周长是6.28米，高6米的圆柱形水池里．水面上升了0.3米．这个圆锥的体积是多少？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">3.14 * 1 * 0.3</gadget>
<output>0.942</output>

<result>0.942</result>