Геометрия. Дано: BC перпендикулярна AD. BC=6 см. BK=3 см. угол A=45 градусов. Найти AD.

Геометрия. Дано: BC перпендикулярна AD. BC=6 см. BK=3 см. угол A=45 градусов. Найти AD. Помогите плиииз.
- Предмет:
  Математика
- Автор:
  aishaweeks
- 5 лет назад

Ответы 2

по теороме Пифагора АВ²= 36-9АВ²= 25АВ= 5ПОСТАВЬ ПОЖАЛУЙСТА СПАСИБО
- Автор:
  rowdy2qv1
- 5 лет назад
- 0
B=180-90-45=45Следовательно Тркугольник АКВ=равнобедренныйАК=КВ=3смПрводим перпендикуляр СН к стороне АДВСНК=прямоугольник=ВС равно КН=6 смУг А=Д=45 т.к. трапеция перпендикулярнаяУг С =45, треуг.СНД равнобедренныйВК=СД и СН=НД=3АД=3+6+3=12 см
- Автор:
  margaretdaniels
- 5 лет назад
- 0
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СДЕЛАЙТЕ КРАТКИЙ ПЕРЕСКАЗ ТЕКСТА ДАЮ 49 БАЛЛОВ
The action takes place in South Africa. Lanny Swartz, a young coloured man, was sent by his village folk to study in Cape Town. He has graduated from the University and is now returning to his native village, anxious to teach his people.
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Геометрия. Дано: BC перпендикулярна AD. BC=6 см. BK=3 см. угол A=45 градусов. Найти AD. Помогите плиииз.

Ответы 2

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