A cylinder and a cone have the same volume and height respectively. The area of the base of the cone is 9 square centimeters. What is the area of the base of the cylinder in square centimeters?
一个圆柱与一个圆锥的体积和高分别相等，圆锥的底面积是9平方厘米，圆柱的底面积是多少平方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<result>3</result>