Предмет: Геометрия, автор: dolgolenkogregori

Определите, остроугольным, прямоугольным или тупоугольным являются треугольники, стороны которых:
1) 5см, 6см и 8 см
2)4см, 7 см и 8 см
3) 9 см, 12 см и 15 см

Ответы

Автор ответа: Okorochka
1
1) тупоугольный (5^2+ 6^2 будет меньше чем 8^2)
2) остроугольный (4^2+7^2 больше чем 8^2)
3)прямоугольный (9^2+12^2 то же, что и 15^2)
Сумму квадратов двух сторон приравниваем к квадрату большей стороны

dolgolenkogregori: Спасибо большое))
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