Предмет: Геометрия, автор: azizovafilis7

AB + BC равен 18 Найдите угол A

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Ответы

Автор ответа: 3739393

1

Ответ:

угол А =30

Объяснение:

треугольник АБС - прямоугольный

Угол А = 180° - (90° + 60°) = 30°

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