A cone and a cylinder have the same base area and volume respectively. The height of the cylinder is 1.8 decimeters. What is the height of the cone?
一个圆锥体和一个圆柱体的底面积和体积都分别相等，圆柱体的高1.8分米，圆锥体的高是多少．
<gadget id="calculator">1.8 * 3</gadget>
<output>5.4</output>

<result>5.4</result>