If a log 2 meters long is cut into two cylinders of the same size and the surface area increases by 48 cm2, what is the volume of the log in cm3?
如果把一根长2米的圆木截成两个同样大小的圆柱后，表面积增加了48平方厘米，那么这根圆木的体积是多少立方厘米．
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<result>48</result>