Объяснение:
1. В=180-35-45= 100°
2. А=180-110=70°
С=180-40-70=70°
4. В=180-30-90=60°
5. В=180-130=50°
А=180-90-50=40°
7. А=70°
В=180-70-70=40°
8. А+С=180-50=130
А=С=130:2=65°
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Answers & Comments
Объяснение:
1. В=180-35-45= 100°
2. А=180-110=70°
С=180-40-70=70°
4. В=180-30-90=60°
5. В=180-130=50°
А=180-90-50=40°
7. А=70°
В=180-70-70=40°
8. А+С=180-50=130
А=С=130:2=65°