A cylinder and a cone have the same base area and volume. The height of the cylinder is 1.2dm. What is the height of the cone?
一个圆柱和一个圆锥的底面积和体积相等，这个圆柱的高是1.2dm，这个圆锥的高是多少．
<gadget id="calculator">1.2 * 3</gadget>
<output>3.6</output>

<result>3.6</result>