There is a cylindrical piece of wood, if it is cut into two pieces, its surface area will increase by 25.12 square decimeters; if it is split into two half cylinders along the diameter of its base, its surface area will be increased by 100 square centimeters rice. What is the surface area of this cylindrical piece of wood?
有一根圆柱形的木料，如果把它截成两段，它的表面积就会增加25.12平方分米；如果沿着它的底面直径把它劈成两个半圆柱，它的表面积就增加100平方分米．这根圆柱形木料的表面积是多少平方分米．
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">3.14 * 50</gadget>
<output>157</output>

<gadget id="calculator">25.12 + 157</gadget>
<output>182.12</output>

<result>182.12</result>