A cylinder and a cone have the same volume and height. The area of the base of the cone is 9 square meters. What is the area of the base of the cylinder?
一个圆柱和一个圆锥的体积和高都相等，圆锥的底面积是9平方米，圆柱的底面积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 9</gadget>
<output>3</output>

<result>3</result>