If the side length of the square is increased to 5 times the original size, the area of the square is increased to how many times the original size.
正方形的边长扩大到原来的5倍，正方形的面积扩大到原来的多少倍．
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>