Cut a cylindrical piece of wood into 3 sections, the surface area of this cylinder increases by 50.24cm**2, what is the area of the bottom of this piece of wood in cm**2.
把一个圆柱形的木料截成3段，这个圆柱体的表面积增加了50.24cm**2，这根木料的底面积是多少cm**2．
<gadget id="calculator">50.24 / 4</gadget>
<output>12.56</output>

<result>12.56</result>