Предмет: Математика, автор: rustem310511

6. Периметр прямоугольни
метр прямоугольника - 20 см, длина его сторо
ли ширину прямоугольни ка.

Приложения:

Ответы

Автор ответа: oleija

1

У прямоугольника противоположные стороны равны, значит 6+6=12 - это две стороны, которые нам не нужны. 20-12=8 - это сумма двух других противоположных сторон, это ТОЛЬКО ДВУХ, нужно найти ОДНУ сторону: 8:2=4 (см)
Ответ: 4см

camalmustafayev83: неправильно

camalmustafayev83: там нужно найти ширину

camalmustafayev83: чтобы найти нужно периметр отнять на сторону прямоугольника

oleija: Зато теперь он знает как найти неизвестную сторону, хаха. Я не дочитала немного(

camalmustafayev83: ты там неправильно всё сделал

camalmustafayev83: я могу поспорить увидишь я 6 класс ты меня учишь

oleija: Я все правильно сделала, просто одно действие не нужно было писать

oleija: И я ВСЕ правильно сделала оказывается. В интернете на других источниках посмотри, там ответ такой же, как у меня

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