1) 15:5*3=9(км) ширина
2)P=15+15+9+9=48(км) периметр
3)S=15*9=135(км) площадь
= pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com
Пошаговое объяснение:
= pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com = pornhub.com
Пошаговое объяснение: x-2461=5364-1681
x-2461=3683
x=2461+3683
x=6144
проверка 6144-2461=3683
6271-x=2347+257
6271-x=2604
x=6271-2604
x=3667
проверка 6271-3667=2604
2356+x=3537+269
2356+x=3806
x=3806-2356
x=1450
проверка 2356+1450=3806
x-356=456+168
x-356=624
x=624+356
x=980
проверка 980-356=624
a=15км
b=3/5a
15 делим на 5 и берём 3 части
15/5*3=9 км
P=2*(a+b)=24*2=48км
S=a*b
S=15*9=135 км2
ответ: 48 км; 135 км2