Предмет: Математика, автор: Аноним

Длина прямоугольника 12 см, а ширина на 4
см меньше. Найди периметр и площадь
прямоугольника.
​

Ответы

Автор ответа: ekaterina13041989
1

Ответ:

a=12см

b=?см

Р=?см

S=?см

12-4=8см

Р=(а+b)×2

Р=(12+8)×2=40см

S=a×b

S=12×8=96см²

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