AB = 2.5 см
Пошаговое бъяснение:
AB = x
BC = x+2
CD = X/1.5
AD=CD+1 = 1+x/1.5
P = AB + BC +CD +AD
13 = x+(x+2)+(x/1.5)+(1+x/1.5) = 2x+3+2*(x/1.5) = 2x + 3 + 2x/1.5 = 3 + x(2+2/1.5)
10 = 1.333x
x = 7.5
AB = 2.5 см
Пошаговое бъяснение:
AB = x
BC = x+2
CD = X/1.5
AD=CD+1 = 1+x/1.5
P = AB + BC +CD +AD
13 = x+(x+2)+(x/1.5)+(1+x/1.5) = 2x+3+2*(x/1.5) = 2x + 3 + 2x/1.5 = 3 + x(2+2/1.5)
10 = 1.333x
x = 7.5
AB = 2.5 см