The volume of a cone is 7.2 decimeters and the area of the base is 9 decimeters. What is the height of the cone?
一个圆锥的体积是7.2立方分米，底面积是9平方分米，圆锥的高应是多少分米．
<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">7.2 * (1/3)</gadget>
<output>2.4</output>

<result>2.4</result>