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Ответ:
По рисунку:
- острые: \(\angle1,\angle3,\angle5,\angle7,\angle10,\angle12\);
- вертикальные: \(\angle1\) и \(\angle12\), \(\angle2\) и \(\angle11\), \(\angle3\) и \(\angle6\), \(\angle4\) и \(\angle5\), \(\angle7\) и \(\angle10\), \(\angle8\) и \(\angle9\);
- прямые: на рисунке не обозначены;
- накрест лежащие: \(\angle2\) и \(\angle5\), \(\angle11\) и \(\angle6\); \(\angle1\) и \(\angle8\), \(\angle10\) и \(\angle3\);
- тупые: \(\angle2,\angle4,\angle6,\angle8,\angle9,\angle11\);
- односторонние: \(\angle2\) и \(\angle6\), \(\angle11\) и \(\angle5\); \(\angle1\) и \(\angle9\), \(\angle10\) и \(\angle4\);
- смежные: \(\angle1\) и \(\angle2\), \(\angle2\) и \(\angle12\), \(\angle3\) и \(\angle4\), \(\angle4\) и \(\angle5\), \(\angle5\) и \(\angle6\), \(\angle6\) и \(\angle7\), \(\angle7\) и \(\angle8\), \(\angle8\) и \(\angle9\), \(\angle9\) и \(\angle10\), \(\angle10\) и \(\angle11\), \(\angle11\) и \(\angle12\);
- соответственные: \(\angle1\) и \(\angle5\), \(\angle2\) и \(\angle6\), \(\angle3\) и \(\angle7\), \(\angle4\) и \(\angle8\).
