Предмет: Математика, автор: Аноним

Длина комнаты 13 м, а ширина на 7 м Меньше. Найди периметр и площадь комнаты.

Ответы

Автор ответа: aritskaa94
1
13-7=6(м) - ширина комнаты.
P=13*2+6*2=38 кв.м
Площадь: 13*6= 78кв.м

Автор ответа: yakupovfarid
1
(13+(13-7))*2=(13-6)*2=7*2=14 (периметр)
13*(13-7)=13*6=78 (площадь)
вроде всё понятно
и ПЖ в лучший ато балов мало

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