Предмет: Математика, автор: dinara4259

5. Длина прямоугольника в 3 раза больше ширины. Найди площадь
и периметр.
ь
2 см
1 см
3 см
a=b: 3
Р
S

Ответы

Автор ответа: ideykalo1337
69

Пошаговое объяснение:

1 столбик.

a=2*3=6 см

P=6*2+2*2=12+4=16 см

S=2*6=12 см²

2 столбик.

a=1*3=3 см

P=1*2+3*2=2+6=8 см

S=1*3=3 см²

3 столбик.

a=3*3=9 см

P=9*2+3*2=18+6=24 см

S=9*3=27 см²

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