A cylinder and a cone have the same volume and height, and the area of the base of the cone is 30 square centimeters. What is the area of the base of the cylinder in square centimeters?
圆柱和圆锥等体积等高，圆锥的底面积是30平方厘米，圆柱的底面积是多少平方厘米．
<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<result>10</result>