Предмет: Геометрия, автор: qqqwwweeerrr111zxc

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!! СРОЧНО!!!!! SOS!!!!!! SOS!!!!!! SOS!!!!!! HELP!!!!!!HELP!!!!!! HELP!!!!!!

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Ответы

Автор ответа: Tatarka2005

Ответ:

78-=нр-=г9-

Объяснение:

qqqwwweeerrr111zxc: Стоп не понятно

Автор ответа: UncleGreg

Ответ:

Угол BAC = 30 градусов

Угол BCA = 30 градусов

Угол ABC = 120 градусов

Объяснение:

Отношение высоты к боковой стороне = 1/2.

Для прямоугольного треугольника ABD это отношения = SinA

Sin30° = 1/2. Значит угол A = 30°

Аналогично для угла B. Угол B = 30°

Сумма углов треугольника = 180°. Значит оставшийся угол = 180° - 30° - 30° = 120°

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