Предмет: Геометрия, автор: 8899465123

Нужно решить вариант 2

Приложения:

Ответы

Автор ответа: romannovikov393

Ответ:

Объяснение:

1. 180-140=20°

2. 180° - 60° = 120°

3. 180° - 80° = 100°

100° : 2 = 50°

4. AO=BO, CO=DO, CA=BD (все)

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