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ekaterina7331
@ekaterina7331
June 2023
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ПОМОГИТЕ ПОЖАЛУЙСТА, 3 ЗАДАЧИ
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milllav
Verified answer
1. LC=180°-(18°+49°)=113°
2. LC=LA(углы при основании) LB=180°-(42°+42°)=96
3. LB=180°-110°=70 (смежный с DBC) LA=LC(углы при основании) 180°-70°=110° 110°:2=55°
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Verified answer
1. LC=180°-(18°+49°)=113°2. LC=LA(углы при основании) LB=180°-(42°+42°)=96
3. LB=180°-110°=70 (смежный с DBC) LA=LC(углы при основании) 180°-70°=110° 110°:2=55°