Предмет: Алгебра, автор: vorotnikovm05

Какие из следующих утверждений верны?
1) Сумма катетов прямоугольного треугольника больше гипотенузы.
2) Периметр прямоугольника равен сумме длин всех его сторон.
3) Площадь трапеции равна произведению суммы ее оснований на высоту.

Ответы

Автор ответа: mergaliyevamilana

Ответ:

1) верно

2) верно

3) не верно

mergaliyevamilana: если предположить, что гипотенуза равна 10, а катеты по 8 и 6 см, то 14 больше 10.

abdullayevallayar141: в том то и дело, формулировка неправильная

abdullayevallayar141: теорема пифагора гласит о том, что сумма квадратов катетов равна квадрату гипотенузы

abdullayevallayar141: 8^2+6^2=10^2; 64+36=100; 100=100

abdullayevallayar141: поэтому первое неверное

mergaliyevamilana: В вопросе не говорится про квадрат, там просто сумма катетов, а не сумма квадратов катетов

mergaliyevamilana: Если бы был бы вопрос про сумму квадратов катетов, тогда не верно

abdullayevallayar141: хотя да

abdullayevallayar141: согласег

abdullayevallayar141: н*

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