Предмет: Математика, автор: 1234567265

площадь квадрата 81 квадратный сантиметр. найди его сторону и периметр

Ответы

Автор ответа: хорошист315

1 81 : 9=9см сторона
2 9×4=36см
ответ:36 см периметр

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