A cylinder of plasticine has a base area of 12 cm2 and a height of 15 cm. If it is squeezed into a cone with the same base size, 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，高15厘米．如果把它捏成同样底面大小的圆锥，这个圆锥的高是多少厘米．
<gadget id="calculator">12 * 15</gadget>
<output>180</output>

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

<gadget id="calculator">180 * (1/4)</gadget>
<output>45</output>

<result>45</result>