The ratio of the radius of a cone to the base of a cylinder is 3:4, the heights are equal, and the volume of the cone is equal to the volume of the cylinder.
一个圆锥与一个圆柱底面半径的比是3：4，高相等，圆锥体积是圆柱体积的多少．
<gadget id="calculator">3 / 16</gadget>
<output>3/16 = around 0.1875</output>

<result>3/16 = around 0.1875</result>