✔ 最佳答案
Let x be the length of one side of the rectangle
x-3 be the adjacent side of x of the rectangle
x^2 + (x - 3)^2 = 25^2
x^2 + x^2 - 6x + 9 = 625
2x^2 - 6x -616 = 0
x^2 - 3x - 308 = 0
x = 19.1 cm or -16.1 cm (rej)
So, the length of the rectangle is 19.1cm
and the width of the rectangle is 16.1 cm