A cylindrical piece of wood has a base diameter of 2cm and a length of 10cm. After cutting it into two cylindrical pieces of wood, how many square centimeters will the surface area increase?
一根圆柱形木头，底面直径是2cm，长是10cm，将其截成两根圆柱形木头之后，表面积增加多少平方厘米？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1 * 2</gadget>
<output>6.28</output>

<result>6.28</result>