A cylinder has the same volume as a cone with the same base. The height of the cone is 12 cm. What is the height of the cylinder in cm?
一个圆柱体和与它等底的圆锥体的体积相等，圆锥体的高是12厘米，圆柱体的高是多少厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 * (1/3)</gadget>
<output>4</output>

<result>4</result>