7)Кут a=70 а кут b=180-(70+70)=40
8)180-50=130\2=65
9)180-125=55-кут c,c=a=55 b=180-(55+55)=75
10)180-110=70 кут c,c=a=70,b=180-(70+70)=40
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7)Кут a=70 а кут b=180-(70+70)=40
8)180-50=130\2=65
9)180-125=55-кут c,c=a=55 b=180-(55+55)=75
10)180-110=70 кут c,c=a=70,b=180-(70+70)=40