Are all rectangles whose diagonals are 19 in. long congruent? how can I Justify my answer.

Answer 1

Are all rectangles whose diagonals are 19 in. long congruent? how can I Justify my answer.

Answer 2

Of course not. You just need to find x and y such that x^2+y^2 = 361

So, x and y can be

1,√360
2,√357
3,√352
...
√61,√300
√101,√260
and many, many more.