Melt and cast a cylindrical steel material with a bottom circumference of 6.28 decimeters and a height of 6 decimeters into a cone. It is known that the base area of the cone is 9.42 square decimeters, how many decimeters is its height?
把一个底面周长是6.28分米，高是6分米的圆柱形钢材，熔铸成一个圆锥．已知圆锥的底面积是9.42平方分米，它的高是多少分米？
<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 / 9.42</gadget>
<output>0.318471</output>

<gadget id="calculator">3.14 * 1 * 6 * 0.318471</gadget>
<output>5.999994</output>

<result>5.999994</result>