Предмет: Математика, автор: 2013Софийка2013

1)Начерти два таких квадрата,чтоб площадь одноко была на 800 кв.мм. больше,чем площадь другово,а всумме их площади были равны 1000мм.кв.

2)начерти прямоугольник,периметр которого равен 210 мм. а длина одной стороны составляет одну шестую часть длинны другой стороны.вычесли площать этого прямоугольника

Ответы

Автор ответа: max95

1)х+х+800=1000

2х+800=1000

х=100

Площадь первого 100 кв.мм, площадь вторго 900 кв.мм

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