A cuboid has a square base and a base area of 25 square meters. If the height is increased by 1 meter, how many square meters will the surface area of the resulting cuboid increase compared to the original cuboid?
一个长方体，底面是正方形，底面积是25平方米，如果高增加1米，所组成的长方体比原长方体表面积增加多少平方米．
<gadget id="calculator">5 * 4 * 1</gadget>
<output>20</output>

<result>20</result>