1. г
2. г
3. б
4. 54°
5. 60° 120° 60° 120°
6.х+х+60°=180°
2х=120°
х=60°
В: 60° 120°
7. ...
8. 5х+х=180°
6х=180°
х=30°
В: 30° 150°
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Answers & Comments
1. г
2. г
3. б
4. 54°
5. 60° 120° 60° 120°
6.х+х+60°=180°
2х=120°
х=60°
В: 60° 120°
7. ...
8. 5х+х=180°
6х=180°
х=30°
В: 30° 150°