Предмет: Геометрия, автор: Welson2021

угол A=? угол C=90° угол B=130°​

Приложения:

Ответы

Автор ответа: Orangesss
2

Ответ:

∠A = 40°.

Объяснение:

∠АBC = 180° - 130° = 50° т.к. развернутый угол.

∠A = 90° - 50° = 40° - свойство острых углов в прямоугольном треугольнике.

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