Ответ:Ответ
AB = x
BC = AB - 3 = x - 3
CD = 1,125x = 1,125*x
AD = 3 * CD = 3 * 1,125x = 3,375x
P = AB + BC + CD + AD = 10,2 cм
x + (x - 3) + 1,125x + 3,375x = 10,2
6,5x = 13,2
x = 2,03...
AB = x = 2,03 см
ВС = x - 3 = - 0,97 ???
CD = 1,125x = 1,125 * 2,03 = 2,28
AD = 3 * CD = 3 * 2,28 = 6,84
2,03 + (-0,97) + 2,28 + 6,84 = 10,18 (примерно 10,2)