Предмет: Математика, автор: ov22705

Помогите пожалуйста ​

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Ответы

Автор ответа: natali198112306
1

Ответ:

  • ΔCEF подобен ΔKDF  (два угла одного Δ соответственно равны двум углам другого) ∠Е=∠D     ∠F-общий
  • 12.41/7.3=1.7 -коэффициент подобия
  • EF=6.9*1.7=11.73

Пошаговое объяснение:

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