1) (38^2 - 17^2 = 1444 - 289 = 1155) / (47^2 - 19^2 = 2209 - 361 = 1848)
2) (181^2 - 61^2 = 32761 - 3721 = 29040) / (319^2 - 209^2 = 101761 - 43681 = 58080)
3) (300^2 - 100^2 = 90000 - 10000 = 80000) / (140^2 - 60^2 = 19600 - 3600 = 16000)
1) (38^2 - 17^2 = 1444 - 289 = 1155) / (47^2 - 19^2 = 2209 - 361 = 1848)
2) (181^2 - 61^2 = 32761 - 3721 = 29040) / (319^2 - 209^2 = 101761 - 43681 = 58080)
3) (300^2 - 100^2 = 90000 - 10000 = 80000) / (140^2 - 60^2 = 19600 - 3600 = 16000)