You must like to knead plasticine. Please take a piece of plasticine with a side length of 4 cm and knead it into a cone with a height of 12 cm. What is the area of the bottom of the cone?
你一定喜欢捏橡皮泥，请你把一块棱长为4厘米的正方体橡皮泥，捏成高为12厘米的圆锥，捏成的圆锥的底面积是多少平方厘米？
<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>