A cylinder with a height of 12 cm is cut into two half cylinders along the diameter of the bottom surface, and the cut surface is a square. What is the volume of the cylinder?
将一个圆柱高12cm，沿底面直径将圆柱切成两个半圆柱后，切面是一个正方形，这个圆柱的体积是多少．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36 * 12</gadget>
<output>1_356.48</output>

<result>1_356.48</result>