Предмет: Математика, автор: begaiymkozhobekova

удлинив две стороны квадрата в 2 раза каждую получили прямоугольник с периметром 2м 4дм Определите площадь квадрата в (в дм2).

Ответы

Автор ответа: irakon63

2

Ответ:

16 дм²

Пошаговое объяснение:

Пусть сторона квадрата - х дм

Стала 2х дм и получился прямоугольник со сторонами х и 2х дм

Периметр стал равен 2(х+2х)=24 дм решаем,

3х=12

х=4 дм

Площадь квадрата будет 4*4=16 дм²

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