child kneads a cube of plasticine with a side length of 4 decimeters into a solid cone with a height of 12 decimeters. What is the area of the base of the cone in square decimeters?
一名小朋友把一块棱长为4分米的正方体橡皮泥，捏成了一个高为12分米的实心圆锥，这个圆锥的底面积是多少平方分米．
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

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

<gadget id="calculator">64 * (1/4)</gadget>
<output>16</output>

<result>16</result>