The volume of the cone is 15 cubic decimeters, the area of the base is 10 square decimeters, what is the height of the cone?
圆锥的体积是15立方分米，底面积是10平方分米，圆锥的高是多少分米．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">15 * (3/10)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>