If the volume of a cylinder with a base radius of 1m is 3.14m**3, what is the square of the base radius of a cone with the same volume as it?
底面半径为1m的圆柱体的体积为3.14m**3，则和它同体积的等高圆锥的底面半径的平方为多少．
<gadget id="calculator">3 * 3.14</gadget>
<output>9.42</output>

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

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

<gadget id="calculator">3.14 / 3.14</gadget>
<output>1</output>

<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<result>3</result>