Предмет: Математика, автор: джин2007

подскажите условие к задаче Длина сторон четырехугольника 5 дм,8 дм,9 дм,12 дм.Найди его периметр

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Автор ответа: liza2006lyookk1

Длина.сторон.- 5дм,8дм,9дм,12дм
P-?

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