Ответ:
Треугольники: ABC, ABK, BNK, NKC, BKC;
Углы: ABC = 70, BAK = BCK = (180-70)/2 =55, ABK = CBK = BKN = NBK = 70/2 = 35;
BNK = 180-35*2 = 110;
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Ответ:
Треугольники: ABC, ABK, BNK, NKC, BKC;
Углы: ABC = 70, BAK = BCK = (180-70)/2 =55, ABK = CBK = BKN = NBK = 70/2 = 35;
BNK = 180-35*2 = 110;