Mathematics, 04.08.2021 08:10 juliannabartra
Cho ∆ABC có CA = CB = 10cm, AB = 12cm. Kẻ CI ⊥ AB (I ∈AB) a) Chứng minh IA = IB b) Tính độ dài IC. c) Kẻ IH vuông góc với AC (H thuộc AC), kẻ IK vuông góc với BC (K thuộc BC). So sánh các độ dài IH và IK. d) Chứng minh CI là đường trung trực của HK?
Answers: 2
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Cho ∆ABC có CA = CB = 10cm, AB = 12cm. Kẻ CI ⊥ AB (I ∈AB) a) Chứng minh IA = IB b) Tính độ dài IC. c...
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