5. В треугольнике АВС ∠ А = 26°, ∠В в 3 раза больше. Найдите ∠С.
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19.05.2020 14:24
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1
Объяснение:
180-26-3*26= 180-26-78= 76°
76
Объяснение:
180-(26•3+26)=76
тк А=26
в= 78
след.
с=76