Mathematics, 19.09.2021 14:00, ava108

Triunghiurile ABC și DBC sunt dreptunghice, ∢A = ∢D = 90° și E este mijlocul laturii BC. a) Dacă punctele A, E, D nu sunt coliniare, demonstrați că triunghiul triunghiul AED este isoscel. b) Dacă AD⊥ BC, arătați că Δ ABC ≡ Δ DBC. dau corona

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Triunghiurile ABC și DBC sunt dreptunghice, ∢A = ∢D = 90° și E este mijlocul laturii BC. a) Dacă pun...