A cylinder and a cone have the same volume. It is known that the ratio of the height of the cone to the cylinder is 1:3. What is the area of the base of the cylinder equal to the cone?
一个圆柱和一个圆锥体积相等，已知圆锥与圆柱高的比是1：3，那么圆柱底面积是圆锥多少
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<result>1/9 = around 0.111111</result>