ABCD is a parallelogram , AC ∩ BD = { M }

Proof ABCD is a parallelogram, AC ∩ BD = { M } M is the mid point of AC and BD In Δ CBE: M is the mid point of CA and ME // CB E is the mid point of AB AE = EB	Proof Proof
Proof	Proof
Proof	1. Δ LNB 2. Δ DOM 3. Δ BON
Proof	Proof L = A ÷ W = 48 ÷ 6 = 8 cm
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Дата добавления: 2015-09-29