Knead three cylindrical plasticine with a base area of 12 square centimeters and a height of 5 centimeters into a cone of the same base size. What is the height of the cone in centimeters?
把3个底面积是12平方厘米，高是5厘米的圆柱形橡皮泥捏成一个同样底面大小的圆锥，这个圆锥的高是多少厘米．
<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">12 * 5 * 3 * (1/4)</gadget>
<output>45</output>

<result>45</result>