дано трикутник ABC і вписану коніку з фокусами P

скучні задачі

дано трикутник ABC і вписану коніку з фокусами P, Q. трикутники APQ, BPQ, CPQ доповнили до гармонійних чотирикутників точками A', B', C'.

а) доведіть перспективність ABC і A'B'C'

б) доведіть що перспектор X цих трикутників належить колу (A'B'C')

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207 viewsДон Шихуан, Jun 19 at 22:22

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Create: 2025-06-19
Last Update: 2025-07-01 03:48:19

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