Предмет: Математика, автор: Kamila08072006

Помогите пожалуйста!!!

Приложения:

AliyaLissYouTube: какой номер

Kamila08072006: Извините номер не указала... номер 885

Ответы

Автор ответа: AliyaLissYouTube

1)длина 9см
ширина 9/3=3 см
периметр равен 2*(9+3)=2*12=24см
2)периметр равен 24+8=32 см
сторона равна 32/4=8см
3)площадь равна 8*8=64см
площадь второго квадрата 64+27=91 см
91/4=22,75 см сторона второго квадрата
5)длина 22,75*2=45,5 см
ширина 22,75/2=11,375 см
периметр 2*(45,5+11,375)=113,75см
площадь 45,5*11,375=517,5625см

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