Предмет: Математика, автор: буся2007

Помогите пожалуйста с 5 заданием

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Автор ответа: samoilenkoolga
0
1.Большой квадрат,за условием= 4 м, справа мы видим 2 маленьких квадрата и сумма их сторон=стороне большого квадрата,то есть 1 сторона мал. квадрата=4÷2=2 м. Из этого выходит что стороны основного кв. = или бол. кв. +мал.(4+2=6м) ,или 3 мал. (2·3=6м) Площадь тогда = 6·6=36 м²
2.За условием сторона мал. кв.=1м,на рисунке видно, что сторона среднего кв. =3-м сторонам маленького кв.(3·1=3 м) Найдём сторону бол. кв.,она больше на 1 мал. кв,чем средний.(3+1=4 м) Найдём сторону основного кв.,она = или сред. вк. + бол. (3+4=7 м), или 2 сред. кв. + мал. (3+3+1=7 м) Площадь тогда = 7·7=49 м²
Автор ответа: samoilenkoolga
0
а,да простите за ошибку
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