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÷áõÙ »Ý ÙÇÙÛ³Ýó£ ºñÏáõ ·Ý¹»ñ, áñáÝóÇó Ûáõñ³ù³ÝãÛáõñÇ ß³é³íÇÕÁ Ñ³í³ë³ñ ¿ ÏáÝÇ (Ï³Ù ·É³ÝÇ) ÑÇÙùÇ ß³é³íÕÇÝ, ßáß³÷áõÙ »Ý ÙÇÙÛ³Ýó, ·É³ÝÇ ¨ Ïá- ÝÇ ÏáÕÙÝ³ÛÇÝ Ù³Ï»ñ¨áõÛÃÝ»ñÁ ¨ ³ÛÝ Ñ³ñÃáõÃÛ³ÝÁ, áñÁ å³ñáõÝ³ÏáõÙ ¿ ·É³- ÝÇ ÙÛáõë ÑÇÙùÁ ¨ ÏáÝÇ ·³·³ÃÁ£ ï»ù ÏáÝÇ ³é³Ýóù³ÛÇÝ Ñ³ïáõÛÃÇ ·³·³ÃÇ ³ÝÏÛáõÝÁ£ ÈáõÍáõÙ£ ¸Çï³ñÏ»Ýù ·É³ÝÇ í»ñÇÝ ÑÇÙùáí ¨ ÏáÝÇ ·³·³Ãáí ³ÝóÝáÕ Ñ³ñ- ÃáõÃÛáõÝÁ£ ¸Çóáõù A-Ý ¨ B-Ý ·É³ÝÇ ¨ ÏáÝÇ ³é³ÝóùÝ»ñÇ ³Û¹ Ñ³ñÃáõÃÛ³ÝÁ å³ïÏ³ÝáÕ Ï»ï»ñÝ »Ý, C-Ý ¨ D-Ý ·Ý¹»ñÇ ¨ ³Û¹ Ñ³ñÃáõÃÛ³Ý ßáß³÷Ù³Ý Ï»ï»- ñÁ (ÝÏ. 23 ³), r-Á ³Û¹ ·Ý¹»ñÇ, ÇÝãå»ë Ý³¨ ÏáÝÇ ¨ ·É³ÝÇ ÑÇÙù»ñÇ ß³é³íÇÕÁ£ ²ÛÝ μ³ÝÇó, áñ ÏáÝÇ ¨ ·É³ÝÇ ÑÇÙù»ñÁ ÙÇÙÛ³Ýó ßáß³÷áõÙ »Ý, Ñ»ï¨áõÙ ¿, áñ AB = 2r£ ø³ÝÇ áñ ·Ý¹»ñÁ ßáß³÷áõÙ »Ý ÙÇÙÛ³Ýó, ³å³ CD = 2r£ ÆëÏ ·Ý¹»ñÁ ÙÇÙÛ³Ýó ¨ ·É³ÝÇ ÏáÕÙÝ³ÛÇÝ Ù³Ï»ñ¨áõÛÃÁ ßáß³÷»Éáõó Ñ»ï¨áõÙ ¿ª CA = DA = 2r£ ²ÛÝáõÑ»ï¨, ù³ÝÇ áñ DA = BA = CA = 2r, ∠DAB =∠BAC = 30°, ëï³ÝáõÙ »Ýù, áñ DB = BC = 4r sin15° = 4r sin (45° − 30°) = r(√$6 −√$2 )£ ¸Çï³ñÏ»Ýù ÏáÝÇ ³é³Ýóùáí ¨ C Ï»ïáí ³ÝóÝáÕ Ñ³ñÃáõÃÛáõÝÁ (ÝÏ. 23 μ) ¸Çóáõù ú-Ý ·Ý¹Ç Ï»ÝïñáÝÝ ¿, α-Ý ÏáÝÇ ³é³Ýóù³ÛÇÝ Ñ³ïáõÛÃÁ ·³·³ÃÇ ³ÝÏÛ³Ý Ï»ëÁ£ Ý¹Ç ¨ ÏáÝÇ ÏáÕÙÝ³ÛÇÝ Ù³Ï»ñ¨áõÛÃÇ ßáß³÷Ù³Ý å³ÛÙ³ÝÇó Ñ»ï¨áõÙ ¿ , áñ 1 π ∠CBO = −−− (−− − α), ³ÛëÇÝùÝ 2 2 π α OC 1 √⎯ 6 + √⎯ 2 tg (−−− − −−−) = −−−− = −−−−−−−− = −−−−−−−, 4 2 BC √⎯ 6 − √⎯ 2 4 ³) μ) ÜÏ. 23 26
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Page 3 and 4: 11-ñ¹ ¹³ë³ñ³Ý
Page 5 and 6: ²Ûëå»ë, »Ã» O ·³·³ÃÇ
Page 7 and 8: î³ñ³ÍáõÃÛ³Ý Ù»ç å³
Page 9 and 10: Üß³Ý³Ï»Ýù OA = r, O 1 A 1
Page 11 and 12: 2°. É³ÝÇ ³é³ÝóùÇÝ ½á
Page 13 and 14: Ñ³ïíáõÙ »Ý K ßñç³Ý³
Page 15 and 16: áñï»Õ R-Á ·Ý¹Ç ß³é³í
Page 17 and 18: 6. É³ÝÇ μ³ñÓñáõÃÛáõ
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