Предмет: Математика, автор: ramal77740

19.
Длины сторон прямоугольника равны
равны 20
и 15 см. Найди его периметр.
​

Ответы

Автор ответа: bablkvasveryyummy
0

Ответ: 20*2+15*2

Пошаговое объяснение:

violetta1453: периметр прямоугольника равен 70 сантиметров
ramal77740: Спасибо
Автор ответа: elenacybulina68
0

Ответ:

а=20

b=15

P=?

P=(a+b)×2=(20+15)×2=35×2=70см

ответ Р=70см

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