Предмет: Алгебра, автор: Аноним

7 класс
Угл A - 52°, С - 30° Если плохо видно.

Приложения:

Ответы

Автор ответа: UpBrain
0
Чертить надо было с точки B.

BDC - 90 градусов т.к это прямоугольный треугольник
Автор ответа: yulia6913
0
Решения:
∠АВС = 180°-52°-30° = 98°
∠DBC = 98°÷2 = 48°
∠BDC = 180°-30°-48° = 102°
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заранее большое спасибо )