Предмет: Математика, автор: ramaibraimov93

б) Вычисли площадь боковых стенок
этой коробки. Узнай, сколько бумаги потребуется для оклеивания коробки. ​

nelly96109: это 3 класс
nelly96109: ????
ponivkedah: Да
nelly96109: спасибо

Ответы

Автор ответа: abrazejciksasa
7

Дано:

А-длина,b-ширина с -высота

найти:Sбок=?

Площадь боковой поверхности -две по две грани стоящих.

S=2*(а*с+b* с)-боковая площадь ответ.

Приложения:
nelly96109: это 3 класс ????
arturgordich202088: А у меня 5 класс
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