The side length of a square is 15 cm, and the width of a rectangle with the same area is 9 cm, what is the length of the rectangle in cm? (solution by equation)
一个正方形的边长是15cm，与它面积相等的长方形的宽是9cm，求长方形的长是多少cm？(用方程解)
<gadget id="calculator">15 * 15</gadget>
<output>225</output>

<gadget id="calculator">225 / 9</gadget>
<output>25</output>

<result>25</result>