Предмет: Геометрия, автор: Аноним

Пожалуйста помогите,даю 30 балов ,спам удаляем

Приложения:

Ответы

Автор ответа: HackZem

1

Відповідь:

1)Б (a||b)

2)Б (BC||AD)

3)B (155°)

Пояснення:

3 завдання

∠1=∠2

∠1+∠2=50

Отже

∠1=∠2=50:2=25°

∠3 суміжний з ∠2

∠3=180°-25°=155°

HackZem: Якщо не важко познач як найкращу відповідь

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