математика 11 клас //////На основании АС равнобедренного треугольника АВС взята точка Е, а на боковых сторонах АВ и ВС точки D и F так, что DE ‖ BC и EF ‖ AB. Какую часть площади треугольника АВС занимает площадь треугольника DEF, если BF:EF=2:3?

математика 11 клас //////На основании АС равнобедренного треугольника АВС взята точка Е, а на боковых сторонах АВ и ВС точки D и F так, что DE ‖ BC и EF ‖ AB. Какую часть площади треугольника АВС занимает площадь треугольника DEF, если BF:EF=2:3?
- Предмет:
  Математика
- Автор:
  tristianl1tm
- 5 лет назад

Ответы 1

КОРОЧЕ....ОТКРЫВАЕШЬ УЧЕБНИК.ИЩЕШЬ ДАННУЮ ТЕМУУЧИШЬРЕШАЕШЬ
- Автор:
  jordinigjs
- 5 лет назад
- 0
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