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Автор - maksskachek

В трапеции ABCD , углы при вершине AC равны 36градусов и 117градусов Найти углы B и D

Ответ

Автор - КриперTV

Cоседние боковые углы в сумме дают 180 градусов

угол B = 180 - 36 = 144 градуса

угол D = 180 - 117 = 63 градуса

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