If a piece of cylindrical wood is cut into two small cylinders, its surface area will be increased by 314cm**2; if it is split into two half cylinders along the diameter, its surface area will be increased by 160cm**2. Surface area.
一段圆柱形木料，如果截成两个小圆柱，它的表面积就加314cm**2；如果沿直径劈成两个半圆柱，它的表面积就增加160cm**2，求这段圆柱形木料的表面积．
<gadget id="calculator">314 + 251.2</gadget>
<output>565.2</output>

<result>565.2</result>