Один из катетов на 1 меньше другого площадь треугольника равна 6. найти периметр треугольника ​

 Так как ширина окантовки одинакова, примем её за х (см),
тогда :
(2х + 19) см - это ширина картины с окантовкой
(2х + 32) см - это длина картины с окантовкой
(2х + 19) * (2х + 32)  - это площадь картины с окантовкой
Составим уравнение:
(2х + 19) * (2х + 32) = 1080
4х^2 + 34 x + 64x +  608 = 1080
4x^2 + 102x - 472 = 0       ( : на 2)
2x^2 + 51 - 236 = 0
D = 2601 - 4(-236)(2) = 2601 + 1888 = 4489;    YD = 67
x1 = (- 51 + 67) / 4 = 16/4 = 4
x2 = (-51 -67) / 4 = - 29,5 ( не подходит по условию задачи)
ответ: 4см - ширина окантовки

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