A cylindrical piece of wood with a length of 5 meters is sawed into 2 sections, and the surface area is increased by 60 square decimeters. What is the area of the base of this piece of wood in square centimeters?
将一根长5米的圆柱形木料锯成2段，表面积增加60平方分米．这根木料的底面面积是多少平方分米．
<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<result>30</result>