A cylinder of plasticine has a base area of 15cm**2 and a height of 6cm. If it is squeezed into a cone with the same base size, what is the height of the cone?
一个圆柱形橡皮泥，底面积是15cm**2，高是6cm．如果把它捏成同样底面大小的圆锥，这个圆锥的高是多少？
<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">15 * 6 * (1/5)</gadget>
<output>18</output>

<result>18</result>