В Δ АВС и Δ А1В1С1 АВ=А1В1, АС=А1С1, ∠А=∠А1. На сторонах АВ и А1В1 отмечены точки Р и Р1 так, что

В Δ АВС и Δ А1В1С1 АВ=А1В1, АС=А1С1, ∠А=∠А1. На сторонах АВ и А1В1 отмечены точки Р и Р1 так, что АР=А1Р1. Докажите, что Δ ВРС=Δ В1Р1С1.
- Предмет:
  Геометрия
- Автор:
  platopaho
- 5 лет назад

Ответы 1

ΔABC=ΔA1B1C1 по первому признаку равенства Δ-ков, значит:АВ=А1В1, ВС=В1С1, ∠В=∠В1Если АР=А1Р1, тоВР=В1Р1=АВ-АР=А1В1-А1Р1Итак: ВС=В1С1, ВР=Р1В1, ∠В=∠В1, значит ΔВРС=ΔВ1Р1C1 по первому признаку равенства треугольников....Ну и как "Лучший ответ" не забудь отметить, ОК?!.. ;)
- Автор:
  lee29
- 5 лет назад
- 0
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В Δ АВС и Δ А1В1С1 АВ=А1В1, АС=А1С1, ∠А=∠А1. На сторонах АВ и А1В1 отмечены точки Р и Р1 так, что АР=А1Р1. Докажите, что Δ ВРС=Δ В1Р1С1.

Ответы 1

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