A cylinder of plasticine has a base area of 12 square centimeters and a cylinder height of 5 centimeters. If it is shaped into a cone of the same size as the bottom surface, what is the height of the cone in centimeters?
一个圆柱形橡皮泥，底面积是12平方厘米，圆柱的高是5厘米，如果把它捏成底面同样大小的圆锥，这个圆锥的高是多少厘米？
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">60 * (1/4)</gadget>
<output>15</output>

<result>15</result>