If a cylinder is cut into three small cylinders, the surface area increases by 48cm**2, what is the area of the base of the original cylinder in cm**2?
将一个圆柱切成三个小圆柱，表面积增加了48cm**2，则原来圆柱的底面积是多少cm**2．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<result>12</result>