18.1.2 ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ 1平行四边形的判定.pptx
ᠵᠢᠰᠢᠭᠥᠯᠵᠢᠨ ᠦ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ︵ᠨᠢᠬᠡ︶,ᠠᠯᠪᠠᠨ ᠵᠢᠷᠤᠮ ᠤᠨ ᠰᠤᠷᠭᠠᠨ ᠭᠦᠮᠦᠵᠢᠯ ᠦᠨ ᠰᠤᠷᠬᠤ ᠪᠢᠴᠢᠭ᠌,ᠨᠠ᠌ᠢᠮᠠᠳᠤᠭᠠᠷ ᠣᠨ （ ᠲᠤᠤᠷᠠᠳᠤ ᠲᠡᠪᠳᠡᠷ ）,ᠲᠣᠭᠠᠨ ᠤ ᠤᠬᠠᠭᠠᠨ,ᠡᠷᠭᠢᠴᠡᠭᠦᠯᠦᠯ᠄,1. ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠲᠤᠳᠤᠷᠬᠠᠢᠯᠠᠯᠳᠠ,2. ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠰᠢᠨᠵᠢ ᠴᠢᠨᠠᠷ,ᠰᠤᠷᠬᠤ ᠬᠠᠷᠠᠯᠳᠠ᠄,(1) ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ᠋ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠢ᠋ᠢᠨ ᠠᠷᠭᠠ ᠵᠢ ᠰᠦᠪᠡᠭᠴᠢᠯᠡᠨᠡ᠃( ᠭᠣᠣᠯᠳᠠᠯᠭᠠ),ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ᠋ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠢ᠋ᠢᠨ ᠠᠷᠭᠠ ᠵᠢ ᠣᠢᠯᠭᠠᠵᠤ ᠠᠮᠢᠳᠤᠷᠯᠢᠭ ᠢ᠋ᠢᠠᠷ ᠬᠡᠷᠡᠭᠯᠡᠵᠤ ᠴᠢᠳᠠᠨᠠ᠃ ( ᠬᠦᠴᠢᠷᠳᠡᠯᠭᠡ),ᠰᠦᠪᠡᠭᠴᠢᠯᠡᠬᠦ᠄,ᠨᠢᠭᠡ ᠬᠡᠰᠡᠭ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠬᠡᠯᠪᠡᠷᠢᠲᠠᠢ ᠰᠢᠯ ᠪᠠᠢᠵᠠᠢ᠂ ᠬᠢᠴᠢᠶᠡᠮᠵᠢ ᠦᠭᠡᠢ ᠡᠴᠡ ᠪᠣᠯᠵᠤ ᠬᠠᠭᠠᠯᠤᠭᠰᠠᠨ ᠪᠠᠢᠨᠠ᠂ ᠲᠡᠭᠡᠪᠡᠯ ᠲᠠ ᠡᠨᠡᠬᠦ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠢ ᠪᠦᠷᠢᠨ ᠪᠦᠳᠦᠨ ᠪᠣᠯᠭᠠᠵᠤ ᠴᠢᠳᠠᠨᠠ ᠤᠤ︖ ᠦᠨᠳᠦᠰᠦᠯᠡᠯ ᠨᠢ ᠶᠠᠭᠤ ᠪᠤᠢ︖,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠵᠡᠷᠭᠡᠴᠡᠬᠦ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠲᠤᠳᠤᠷᠬᠠᠢᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠠᠷᠭᠠ᠄,,ᠰᠡᠳᠭᠢᠬᠦ ᠄,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠰᠢᠨᠵᠢ ᠴᠢᠨᠠᠷ ᠤᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ ᠶᠢᠨ ᠤᠷᠪᠠᠭᠤ ᠥᠭᠦᠯᠡᠯ ᠨᠢ ᠪᠠᠢᠭᠤᠯᠤᠭᠳᠠᠨᠠ ᠤᠤ︖ ᠲᠠ ᠤᠷᠪᠠᠭᠤ ᠥᠭᠦᠯᠡᠯ ᠢ ᠨᠢ ᠪᠢᠴᠢᠭᠡᠳ ᠪᠠᠰᠠ ᠪᠠᠳᠤᠯᠠᠵᠤ ᠦᠵᠡ︕,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠰᠢᠨᠵᠢ ᠴᠢᠨᠠᠷ ᠤᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ᠄,1. ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠡᠩᠴᠡᠭᠦᠤ᠃,2.ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠡᠰᠡᠷᠭᠦ ᠥᠨᠴᠦᠭ ᠨᠢ ᠲᠡᠩᠴᠡᠭᠦᠤ᠃,3. ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠦ ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠨᠠ᠃,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠥᠨᠴᠦᠭ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,,ᠪᠠᠳᠤᠯᠠᠬᠤ᠄,ᠰᠡᠳᠭᠢᠬᠦ 1᠄,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ 1 ᠄,,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠥᠨᠴᠦᠭ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,,D,A,B,C,ᠪᠠᠳᠤᠯᠠᠬᠤ᠄,ᠰᠡᠳᠭᠢᠬᠦ 2᠄,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠥᠨᠴᠦᠭ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ 2 ᠄,D,A,B,C,,ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,,ᠪᠠᠳᠤᠯᠠᠬᠤ᠄,ᠰᠡᠳᠭᠢᠬᠦ 3᠄,ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ 3᠄,,O,ᠪᠠᠳᠤᠯᠠᠬᠤ᠄,,,ᠪᠣᠯᠪᠠᠰᠤᠷᠠᠯ᠄,┐,┐,ᠳ᠋ᠦᠩᠨᠡᠯᠳᠡ᠄,ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠤ ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠠᠷᠭᠠ,1. ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,2. ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠥᠨᠴᠦᠭ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,3. ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠵᠡᠷᠭᠡᠴᠡᠬᠦ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ,ᠲᠤᠳᠤᠷᠬᠠᠢᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠠᠷᠭᠠ,ᠮᠠᠭᠠᠳᠯᠠᠯᠳᠠ ᠶᠢᠨ ᠪᠠᠳᠤᠶᠤᠰᠤ,ᠰᠦᠪᠡᠭᠴᠢᠯᠡᠬᠦ᠄,ᠨᠢᠭᠡ ᠬᠡᠰᠡᠭ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠬᠡᠯᠪᠡᠷᠢᠲᠠᠢ ᠰᠢᠯ ᠪᠠᠢᠵᠠᠢ᠂ ᠬᠢᠴᠢᠶᠡᠮᠵᠢ ᠦᠭᠡᠢ ᠡᠴᠡ ᠪᠣᠯᠵᠤ ᠬᠠᠭᠠᠯᠠᠭᠰᠠᠨ ᠪᠠᠢᠨᠠ᠂ ᠲᠡᠭᠡᠪᠡᠯ ᠲᠠ ᠡᠨᠡᠬᠦ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ ᠢ ᠪᠦᠷᠢᠨ ᠪᠦᠳᠦᠨ ᠪᠣᠯᠭᠠᠵᠤ ᠴᠢᠳᠠᠨᠠ ᠤᠤ︖ ᠦᠨᠳᠦᠰᠦᠯᠡᠯ ᠨᠢ ᠶᠠᠭᠤ ᠪᠤᠢ︖,D,ᠠᠷᠭᠠ 1᠄,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠵᠡᠷᠭᠡᠴᠡᠬᠦ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,D,ᠠᠷᠭᠠ 2᠄,ᠬᠤᠶᠡᠷ ᠬᠣᠣᠰ ᠡᠰᠡᠷᠭᠦ ᠲᠠᠯᠠ ᠨᠢ ᠲᠤᠰ ᠲᠤᠰ ᠲᠡᠩᠴᠡᠭᠦᠤ ᠪᠣᠯᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,D,O,ᠠᠷᠭᠠ 3᠄,ᠲᠠᠰᠢᠭᠤᠪᠴᠢ ᠨᠢ ᠬᠠᠷᠢᠯᠴᠠᠨ ᠲᠠᠯᠠᠯᠠᠨ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠲᠦᠷᠪᠡᠯᠵᠢᠨ ᠪᠤᠯ ᠵᠢᠰᠢᠭᠦᠯᠵᠢᠨ᠃,
ᠮᠣᠩᠭᠣᠯ ᠳ᠋ᠣᠺ ᠤᠨ ᠬᠥᠮᠥᠷᠭᠡ