В параллелограмме KLMN точка A — середина стороны LM. Известно, что KA=NA. Докажите, - №3370622

В параллелограмме KLMN точка A — середина стороны LM. Известно, что KA=NA. Докажите, что данный параллелограмм — прямоугольник.
- Предмет:
  Геометрия
- Автор:
  rowanfloyd
- 5 лет назад

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