Предмет: Геометрия, автор: galimima1

2. Определите, остроугольным, прямоугольным или тупоугольным является треугольник со сторонами 7 см, 10 см и 13 см.

Ответы

Автор ответа: EgorHagiVagi1337

0

Ответ:

остроугольным, так как уже при соединении двух прямых (10 и 13) этот угол будет уже острым, а остальные не могут быть острыми (доказательство на рисунке)

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