Срочно!!!! в равнобедренном треугольнике авс с основанием ас проведена биссектриса bd найдите углы dba и bda если угол cba=110°

Срочно!!!!
в равнобедренном треугольнике авс с основанием ас проведена биссектриса bd найдите углы dba и bda если угол cba=110°
- Предмет:
  Геометрия
- Автор:
  damonps3u
- 5 лет назад

Ответы 2

Т.к. BD - биссектриса, то ∠ABD = ∠DBC. ∠ABD = 1/2 ∠ABC = 110/2 = 55°∠BDA = 90°, т.к. BD⊥AC (т.к. в равнобедренном треугольнике биссектриса так же является высотой)
- Автор:
  herrera
- 5 лет назад
- 0
Ответ во вложении, с подробным описанием действий
- Автор:
  dakota6t92
- 5 лет назад
- 0
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Срочно!!!! в равнобедренном треугольнике авс с основанием ас проведена биссектриса bd найдите углы dba и bda если угол cba=110°

Ответы 2

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Срочно!!!!
в равнобедренном треугольнике авс с основанием ас проведена биссектриса bd найдите углы dba и bda если угол cba=110°