Предмет: Математика, автор: tchuguevarada

найди площадь прямоугольника если его ширина 4 см а длина в 2 раза больше​

Ответы

Автор ответа: sokollokos465
2

Ширина =4см

Длина =4•2=8см

Периметр прямоугольника =4+4+8+8=24см

Площадь прямоугольника 4•8=32см^2

Milena17: площадь надо найти, а не периметр
sokollokos465: 8•4=32см^2
sokollokos465: Это площа
Milena17: исправляем в окне ответа, иначе ответ будет удален
Milena17: внизу значок карандаш - редактировать
sokollokos465: У меня нету такого
Milena17: спасибо, проверено
Milena17: периметр по формуле Р=2(а+b)
Автор ответа: Milena17
0

Ответ:

S=32 см²

Пошаговое объяснение:

1) 4 · 2=8 (см) - длина

2) S=a · b

S=8 · 4=32 (см²)

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