If the side length of a square is 8 cm, if its side length is increased by 10 cm, how many centimeters will its perimeter be increased?
一个正方形的边长是8厘米，如果把它的边长增加10厘米，那么它的周长增加多少厘米？
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<result>40</result>