A cylinder with a base radius of 6 cm and a height of 10 cm is cut and assembled into an approximate cuboid. By how many square centimeters does the surface area of the cuboid increase compared to the cylinder?
一个底面半径是6厘米高10厘米的圆柱，把它切开后拼成一个近似的长方体．这个长方体的表面积比圆柱增加了多少平方厘米？
<gadget id="calculator">10 * 6 * 2</gadget>
<output>120</output>

<result>120</result>