A cylinder with a height of 6 cm is cut into the largest cone. The volume of this cone is 9.42 cubic centimeters. What is the area of its base?
把一个高6厘米的圆柱体削成最大圆锥体，这个圆锥的体积是9.42立方厘米，它的底面积是多少．
<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">9.42 * (1/2)</gadget>
<output>4.71</output>

<result>4.71</result>