13.1.3 ᠬᠡᠷᠴᠢᠮ ᠤᠨ ᠡᠭᠴᠡ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠭᠴᠢ ᠶᠢᠨ ᠰᠢᠨᠵᠢ ᠴᠢᠨᠠᠷ 2 .pptx
ᠲᠣᠭᠠᠨ ᠤ ᠤᠬᠠᠭᠠᠨ,ᠨᠠᠢ᠍ᠮᠠᠳ᠋ᠤᠭᠠᠷ ᠤᠨ ᠤ ᠲᠡᠬᠡᠳ᠋ᠤ ᠲᠡᠪᠳ᠋ᠡᠷ,ᠠᠯᠪᠠᠨ ᠵᠢᠷᠤᠮ ᠦᠨ ᠰᠤᠷᠭᠠᠨ ᠬᠥᠮᠦᠵᠢᠯ ᠦᠨ ᠬᠢᠴᠢᠶᠡᠯ ᠦᠨ ᠪᠠᠷᠢᠮᠵᠢᠶᠠ ᠶᠢᠨ ᠲᠤᠷᠰᠢᠯᠳ᠋ᠠ ᠶᠢᠨ ᠰᠤᠷᠬᠤ ᠪᠢᠴᠢᠭ,ᠬᠢᠴᠢᠶᠡᠯᠯᠡᠭᠴᠢ᠄ ᠬᠠᠰᠪᠤᠶᠠᠨᠳᠤ QQ᠄ 544941735 ᠨᠠᠢᠲᠡ ᠶᠢᠨ ᠳᠠᠪᠴᠠᠩ᠄,13 .1.3 ᠬᠡᠷᠴᠢᠮ ᠦᠨ ᠡᠭᠴᠡ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠭᠴᠢ ᠶᠢᠨ ᠰᠢᠨᠵᠢ ᠴᠢᠨᠠᠷ,𝐴,𝐵,𝐶,ᠠᠰᠠᠭᠤᠳᠠᠯ 1 ᠄,ᠵᠢᠷᠤᠭ ᠮᠡᠲᠤ᠂ 𝐴 , 𝐵 , 𝐶 ᠭᠤᠷᠪᠠᠨ ᠰᠠᠭᠤᠭᠠᠯᠢ ᠲᠣᠭᠣᠷᠢᠭ ᠠᠴᠠ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠭᠠᠵᠠᠷ ᠨᠢᠭᠡ ᠬᠤᠳᠠᠯᠳᠤᠭᠠᠨ ᠤ ᠲᠥᠪ ᠪᠠᠢᠭᠤᠯᠤᠶᠠ ᠭᠡᠪᠡᠯ᠂ ᠬᠠᠮᠢᠭᠠ ᠪᠠᠢᠭᠤᠯᠪᠠᠯ ᠵᠣᠬᠢᠰᠲᠠᠢ ᠪᠣᠢ ︖,,,,ᠠᠰᠠᠭᠤᠳᠠᠯ 1 ᠄,ᠴᠡᠭ 𝐴 ᠡᠴᠡ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠡᠴᠡ ᠨᠢ ᠬᠠᠮᠢᠭᠠ ᠣᠷᠣᠰᠢᠬᠤ ᠶᠢ ᠮᠡᠳᠡᠨᠡ ᠤᠤ︖ ᠴᠡᠭ 𝐴 ᠡᠴᠡ 2𝑐𝑚 ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠦᠳ ᠢ ᠣᠯ᠃,,𝐴,,ᠨᠢᠭᠡ ᠴᠡᠭ ᠡᠴᠡ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ᠄,ᠲᠣᠭᠣᠷᠢᠭ,,ᠠᠰᠠᠭᠤᠳᠠᠯ 1 ᠄,ᠴᠡᠭ 𝐴᠂ 𝐵 ᠡᠴᠡ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠨᠢ ᠬᠠᠮᠢᠭᠠ ᠣᠷᠣᠰᠢᠬᠤ ᠶᠢ ᠮᠡᠳᠡᠨᠡ ᠤᠤ︖ ᠴᠡᠭ 𝐴 , 𝐵 ᠡᠴᠡ 2𝑐𝑚 ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠢ ᠣᠯ᠃ ᠦᠷᠬᠦᠯᠵᠢᠯᠡᠨ 5𝑐𝑚 ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠢ ᠣᠯ᠃,,𝐴,,𝐵,,,,,,ᠬᠣᠶᠠᠷ ᠴᠡᠭ ᠡᠴᠡ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ᠄,ᠬᠡᠷᠴᠢᠮ ᠦᠨ ᠡᠭᠴᠡ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠭᠴᠢ,ᠠᠰᠠᠭᠤᠳᠠᠯ 1 ᠄,𝐴 , 𝐵 , 𝐶 ᠭᠤᠷᠪᠠᠨ ᠴᠡᠭ ᠠᠴᠠ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠴᠡᠭ ᠨᠢ ᠬᠠᠮᠢᠭᠠ ᠣᠷᠣᠰᠢᠬᠤ ᠶᠢ ᠮᠡᠳᠡᠨᠡ ᠤᠤ︖,,,,,,,𝐵,𝐴,𝐶,𝑀,𝑁,𝑴′,𝑵′,𝑃,,,,,,,,,,,𝐵,𝐴,𝐶,𝑀,𝑁,𝑴′,𝑵′,𝑃,ᠠᠰᠠᠭᠤᠳᠠᠯ 2 ᠄,ᠦᠭᠭᠦᠭᠳᠡᠭᠰᠡᠨ ᠨᠢ᠄ ᠵᠢᠷᠤᠭ ᠮᠡᠲᠤ᠂ Δ𝐴𝐵𝐶 ᠳᠦ᠂ ᠲᠠᠯᠠ 𝐴𝐵 , 𝐵𝐶 ᠶᠢᠨ ᠡᠭᠴᠡ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠭᠴᠢ ᠨᠢ ᠴᠡᠭ 𝑃 ᠳᠤ ᠣᠭᠲᠣᠯᠣᠯᠴᠠᠨᠠ᠃ ᠪᠠᠲᠤᠯᠠᠭᠳᠠᠬᠤ ᠨᠢ᠄ 𝑃𝐴=𝑃𝐵=𝑃𝐶,𝑃𝐵=𝑃𝐶,ᠠᠰᠠᠭᠤᠳᠠᠯ 2 ᠄,,,,,,,𝐵,𝐴,𝐶,𝑀,𝑁,𝑴′,𝑵′,𝑃,𝑃𝐴=𝑃𝐵,,,ᠬᠠᠷᠠᠭᠠᠯᠵᠠᠭᠰᠠᠨ ᠪᠣᠯᠪᠠᠰᠤᠷᠠᠯ,ᠵᠢᠷᠤᠭ ᠮᠡᠲᠤ᠂ Δ𝐴𝐵𝐶 ᠳᠦ᠂ 𝐴𝐷⊥𝐵𝐶 ᠡᠭᠴᠡ ᠶᠢᠨ ᠰᠠᠭᠤᠷᠢ ᠨᠢ ᠴᠡᠭ 𝐷᠂ 𝐴𝐵+𝐵𝐷=𝐷𝐶᠃ ∠𝐵 ᠪᠠ ∠𝐶 ᠶᠢᠨ ᠬᠣᠯᠪᠣᠭᠳᠠᠯ ᠢ ᠲᠠᠭᠠᠮᠠᠭᠯᠠ᠃,,,,,𝐵,𝐴,𝐶,𝐷,𝐸,ᠦᠭᠭᠦᠭᠳᠡᠭᠰᠡᠨ ᠨᠢ ᠵᠢᠷᠤᠭ ᠮᠡᠲᠤ᠂ ᠴᠡᠭ 𝑃 ᠨᠢ 𝑂𝐴 , 𝑂𝐵 ᠶᠢᠨ ᠬᠤᠪᠢ ᠳᠤ ᠲᠡᠭᠰᠢ ᠬᠡᠮᠲᠠᠢ ᠴᠡᠭ 𝑃1 , 𝑃2 ᠂ ᠬᠡᠷᠴᠢᠮ 𝑃1𝑃2 ᠨᠢ 𝑂𝐴 , 𝑂𝐵 ᠲᠠᠢ ᠲᠤᠰ ᠲᠤᠰ ᠴᠡᠭ 𝐷, 𝐶 ᠳᠤ ᠣᠭᠲᠣᠯᠣᠯᠴᠠᠨᠠ᠂ 𝑃1𝑃2=6𝑐𝑚 ᠂ ᠲᠡᠭᠡᠪᠡᠯ △𝑃𝐶𝐷 ᠶᠢᠨ ᠬᠦᠷᠢᠶᠡᠨ ᠦ ᠤᠷᠲᠤ ᠨᠢ ( ),ᠬᠠᠷᠠᠭᠠᠯᠵᠠᠭᠰᠠᠨ ᠪᠣᠯᠪᠠᠰᠤᠷᠠᠯ,,,,,𝐴,𝑂,𝐵,𝑃 1,𝑃,𝑃 2,𝐷,𝐶,,ᠬᠠᠷᠠᠭᠠᠯᠵᠠᠭᠰᠠᠨ ᠪᠣᠯᠪᠠᠰᠤᠷᠠᠯ,V ᠬᠡᠯᠪᠡᠷᠢ ᠲᠠᠢ ᠵᠠᠮ (∠𝐴𝑂𝐵) ᠤᠨ ᠬᠣᠭᠣᠷᠣᠨᠳᠤ 𝐶 ,𝐷 ᠬᠣᠶᠠᠷ ᠳᠤᠰᠬᠤᠨ ᠪᠣᠢ᠂ ᠬᠡᠷᠪᠡ ᠨᠢᠭᠡ ᠨᠡᠭᠡᠮᠡᠯ ᠦᠨ ᠦᠢᠯᠡᠳᠪᠤᠷᠢ 𝑃 ᠶᠢ ᠰᠤᠩᠭᠤᠵᠤ᠂ ᠵᠠᠮ ᠤᠨ ᠬᠣᠶᠠᠷ ᠬᠠᠵᠠᠭᠤ ᠠᠴᠠ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠮᠥᠷᠲᠡᠭᠡᠨ 𝐶 ,𝐷 ᠬᠣᠶᠠᠷ ᠳᠤᠰᠬᠤᠨ ᠡᠴᠡ ᠪᠠᠰᠠ ᠲᠡᠩᠴᠡᠬᠦᠦ ᠵᠠᠢ ᠲᠠᠢ ᠪᠠᠢᠯᠭᠠᠶᠠ ᠭᠡᠪᠡᠯ᠂ ᠨᠡᠬᠡᠮᠡᠯ ᠦᠨ ᠦᠢᠯᠡᠳᠪᠤᠷᠢ 𝑃 ᠶᠢ ᠬᠠᠮᠢᠭᠠ ᠪᠠᠢᠭᠣᠯᠪᠠᠯ ᠵᠣᠬᠢᠰᠲᠠᠢ ᠪᠣᠢ ︖,𝑃,,ᠬᠠᠷᠠᠭᠠᠯᠵᠠᠭᠰᠠᠨ ᠪᠣᠯᠪᠠᠰᠤᠷᠠᠯ,2×4 ᠶᠢᠨ ᠲᠡᠭᠰᠢ ᠲᠥᠷᠪᠡᠯᠵᠢᠨ ᠬᠠᠨᠠᠯᠵᠢᠨ ᠵᠢᠷᠤᠭ ᠲᠤ᠂ ∆𝐴𝐵𝐶 ᠶᠢᠨ ᠣᠷᠣᠢ ᠶᠢᠨ ᠴᠡᠭ ᠨᠢ ᠬᠠᠨᠠᠯᠵᠢᠨ ᠵᠢᠷᠤᠭ ᠤᠨ ᠣᠭᠲᠣᠯᠣᠭᠠᠰᠤ ᠳᠡᠭᠡᠷᠡ ᠣᠷᠣᠰᠢᠨᠠ᠂ ᠲᠡᠭᠡᠪᠡᠯ ᠬᠠᠨᠠᠯᠵᠢᠨ ᠵᠢᠷᠤᠭ ᠳᠡᠭᠡᠷᠡ ᠮᠥᠨ ᠣᠷᠣᠢ ᠶᠢᠨ ᠴᠡᠭ ᠨᠢ ᠣᠭᠲᠤᠯᠣᠭᠠᠰᠤ ᠳᠡᠭᠡᠷᠡ ᠣᠷᠣᠰᠢᠬᠤ ᠮᠥᠷᠲᠡᠭᠡᠨ ∆𝐴𝐵𝐶 ᠲᠠᠢ ᠲᠡᠩᠭᠡᠯᠢᠭ ᠲᠦ ᠲᠡᠭᠰᠢ ᠬᠡᠮᠲᠠᠢ ᠵᠢᠷᠤᠭ ᠲᠥᠷᠰᠤ ᠬᠡᠳᠤ ᠪᠠᠢᠬᠤ ᠪᠤᠢ ︖,
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