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- 1. 亠亰亠仆舒亳 于仗仂仍仆亠仆舒 亳亠仍亠仄 仄舒亠仄舒亳从亳 丕 弌丿 22 亳亳仆仂亶 丐舒礌仂亶 亠仂于仆仂亶, 仗. 亠亠仗, 丐亠仄ﾐ済从亳亶 舒亶仂仆, 舒仆仂亟舒从亳亶 从舒亶
- 2. 1) 舒仄仂亠 亠仂亠仄 仂 仂从亠 仗亠亠亠亠仆亳 于仂 亳 仍亠亟于亳亠 亳亰 仆亠; 2) 个仂仄亳仂于舒 仄亠仆亳 仗亳仄亠仆 亳亰于亠仆亠 亰仆舒仆亳 于 仆亠亰仆舒从仂仄仂亶 亳舒亳亳, 舒于仆亳于舒, 舒仆舒仍亳亰亳仂于舒, 仂弍仂弍舒. 3) 仂仗亳于舒 仂于亠于亠仆仆仂亠 仂仆仂亠仆亳亠 从 仂弍亠仆亳, 仄亠仆亳亠 仂亠仆亳于舒 于仂亶 亟, 舒 舒从亢亠 舒从从舒仆仂, 仂仆仂 亳 于仆亳仄舒亠仍仆仂 仗亳 舒弍仂亠 亠亢仆仄亳 亳仆仄亠仆舒仄亳.
- 3. 4 B D 5K P 弌 亠亠仆亳亠: 1) ABK: DK-亠亠亟亳仆仆亶 仗亠仗亠仆亟亳从仍BK=AK=5. 2) BCK-亠亞亳仗亠从亳亶CK=3. 3) CK=KD=3DA=BD=4. 4) K弌=3+4+5=12, 弌=4+8+8=20 于亠: 12, 20.
- 4. 舒仆仂: ABC, FK, FN - 亠亠亟亳仆仆亠 仗亠仗亠仆亟亳从仍. = 16, 弌F = 10 舒亶亳 舒仂礌亳亠 仂 仂从亳 F 亟仂 仂仂仆 . 亠亠仆亳亠: 1) FK, FN 亠亠亟亳仆仆亠 仗亠仗亠仆亟亳从仍MC 舒从亢亠 亠亠亟亳仆仆亶 仗亠仗亠仆亟亳从仍, AM=BM=8 2) FC=10FB=AF=10. 3) MFA: FA=10, M=8MF=6. 于亠: 6. F 10 M B K CN
- 6. 弌1 弌1 2弌2 舒仆仂: ABC, AA1 BC, BB1 AC, CC1 AB. 仂从舒亰舒: O= AA1 BB1 CC1. 仂从舒亰舒亠仍于仂: 1) 仂于亠亟仄: 弌2B2BC, A2C2AC, A2B2AB 舒从, 仂 B A2C2, C A2B2, A B2C2. 仂仍亳仄 A2 B2 C2. 2) AB= A2C, AB= 弌2B2 , 仂从亳 A, B 亳 C 亠亠亟亳仆 仂仂仆 A2 B2 C2, .亠. 仗礆亠 1, BB1, CC1-亠亠亟亳仆仆亠 仗亠仗亠仆亟亳从仍 从 仂仂仆舒仄 A2 B2 C2 O= AA1 BB1 CC1.
- 7. N B M C DK 舒仆仂: 亞舒 D 仗仂仍仂从亢仆仂. 仂从舒亰舒: MN D. 仂从舒亰舒亠仍于仂: 1) ABD: <B=90 BD-于仂舒 AND. 2) A弌D: <弌=90 弌-于仂舒 AND. 3) M=ACBD NKNK- 仂亢亠 磦仍磳 于仂仂亶 AND MN D.
- 8. O N B H M CH H 仂从舒亰舒亠仍于仂: 1) < = 180属 <N = 180属 <弌N = <C, 仂 亠 弍亳亠从亳舒 <弌, 舒仆舒仍仂亞亳仆仂 弌 弍亳亠从亳舒 <弌. 2) 仂 亠仂亠仄亠 仂 弍亳亠从亳亠 亞仍舒 仂从舒 舒于仆仂亟舒仍亠仆舒 仂 仂仂仆 , 弌, 弌. 仂仂仄, 1 = 2 = 3, 亞亟亠 1 , 2 弌, 3 弌. 3) 仂仍亳仍亳, 仂 , 弌, 弌 从舒舒亠仍仆亠 从 仂从亢仆仂亳 亠仆仂仄 于 仂从亠 亳 舒亟亳仂仄, 舒于仆仄 1.
- 9. C M B 仂从舒亰舒亠仍于仂: 1) 仂 于仂亶于 亞仍仂于 仗亳 仂仆仂于舒仆亳亳 舒于仆仂弍亠亟亠仆仆仂亞仂 亠亞仂仍仆亳从舒 <弌 = <弌. 丐仂亞亟舒 <弌 = < = <弌 = <弌 = <弌 = <. 2) 舒于仆仂弍亠亟亠仆仆亶, = 亳 仂从舒 仍亠亢亳 仆舒 亠亠亟亳仆仆仂仄 仗亠仗亠仆亟亳从仍亠 从 . 3) 丐舒从 从舒从 弌 = 弌, 仂 仂从舒 弌 舒从亢亠 仍亠亢亳 仆舒 亠亠亟亳仆仆仂仄 仗亠仗亠仆亟亳从仍亠 从 . 仂仂仄 弌 .
- 11. 仂仄舒仆亠亠 亰舒亟舒仆亳亠: 于仂仗仂 1 20, . 187188; 688, 720.
- 12. 1. 舒仆舒礌 .弌. 亳 亟. 亠仂仄亠亳 7-9 从仍舒. :, 仂于亠亠仆亳亠, 2008亞. 2. 舒仆舒礌 .弌., 亰仂于 .个. 亳 亟. 束亰亠仆亳亠 亞亠仂仄亠亳亳 于 7-9 从仍舒亠損. 亠仂亟亳亠从亳亠 亠从仂仄亠仆亟舒亳亳. :, 仂于亠亠仆亳亠, 2007亞. 3. 亳于 .., 亠亶仍亠 .. 束亳亟舒从亳亠从亳亠 仄舒亠亳舒仍 仗仂 亞亠仂仄亠亳亳. 8 从仍損. :, 仂于亠亠仆亳亠, 2007亞. 仗仂仍亰仂于舒仆仆舒 仍亳亠舒舒
- 13. http://www.myjulia.ru/data/cache/2009/07/17/152778_2266- 0x600.jpg http://files.botevcheta.webnode.com/200000016- 45175461c2/1stationery15-med.jpg http://www.mathknowledge.com/images/custom/LOGO.GIF http://www.ccboe.net/Teachers/Durham_Sharon/images/918F94220 10B4BB0B160956D6B9D4E34.JPG http://lake.k12.fl.us/cms/cwp/view.asp?A=3&Q=427619 http://www.533school.ru/nach.htm 于仂 亟舒仆仆仂亞仂 舒弍仍仂仆舒: 仄仂仍舒亠于舒 亳仆舒 仍亠从亠亠于仆舒 亳亠仍 亳仆仂仄舒亳从亳 亳 仄舒亠仄舒亳从亳 丕 束舒于仍仂于从舒 仂損 .舒于仍仂于从 仍舒亶从亳亶 从舒亶