Предмет: Геометрия, автор: perrience

20 баллов. решите, пожалуйста, задачу, очень нужно!

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Автор ответа: Аноним

ΔАВС подобен ΔВРК; АВ/ВР=СВ/ВК; ∠В - общий.

⇒ ∠А=∠ВРК=60°; ∠С=∠ВКР=180-(60+70)=50°.

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