cylinder with a height of 12 cm is cut into two sides along the diameter of the bottom surface, and the surface area is increased by 96 cm2. What is the volume of the cylinder in cubic centimeters?
把一个高12厘米的圆柱沿底面直径切成两边，表面积增加了96平方厘米，原来这个圆柱的体积是多少立方厘米．
<gadget id="calculator">96 / 2 / 12</gadget>
<output>4</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 12</gadget>
<output>150.72</output>

<result>150.72</result>