Godfrey, Charles; Siddons, Arthur Warry (1908). Modern Geometry. University Press. p. 20.
สิงหาคม 16, 2021
ทฤษฎ, บทของอะพอลโลเน, ยส, apollonius, theorem, เป, นทฤษฎ, บททางเรขาคณ, เก, ยวข, องก, บความยาวของเส, นม, ธยฐานและความยาวด, านข, างของร, ปสามเหล, ยม, งกล, าวว, ผลรวมค, ากำล, งสองของด, านสองด, านใดๆ, ของร, ปสามเหล, ยม, เท, าก, สองเท, าของผลบวกของคร, งหน, งของความ. thvsdibthkhxngxaphxloleniys Apollonius Theorem epnthvsdibththangerkhakhnit thiekiywkhxngkbkhwamyawkhxngesnmthythanaelakhwamyawdankhangkhxngrupsamehliym sungklawwa phlrwmkhakalngsxngkhxngdansxngdanid khxngrupsamehliym ethakb sxngethakhxngphlbwkkhxngkhrunghnungkhxngkhwamyawdanthisamykkalngsxngkbkhwamyawkhxngesnmthythanykkalngsxng phunthisiekhiywrwmkbphunthisinaengin phunthisiaedng kahndih rupsamehliym A B C displaystyle ABC epnrupsamehliymid tha A D displaystyle AD epnesnmthythan aelw A B 2 A C 2 2 A D 2 B D 2 displaystyle AB 2 AC 2 2 left AD 2 BD 2 right thvsdibthniepnkrniphiesskhxngthvsdibthkhxngscwt Stewart s Theorem inkrnithisamehliym A B C displaystyle ABC epnsamehliymhnacwthi A B A C displaystyle AB AC aelwesnmthythan A D displaystyle AD catngchakkb B C displaystyle BC inkrnidngklawthvsdibthkhxngxaphxloleniyscaklayepnthvsdibthphithaokrskdsiehliymdankhnansmmulkbthvsdibthkhxngxaphxloleniys phankhwamcringthiwaesnthaeyngmumkhxngrupsiehliymdankhnanaebngxxkepnsxngswnthvsdibthniidrbkartngchuxtam Apollonius of Perga sungepnnkkhnitsastrchawkrikobrankarphisucnthvsdibthkhxngxaphxloleniys Apollonius Theorem thvsdibthphithaokrs phunthisiekhiyw phunthisiaedngphisucnthvsdibth aekikhthvsdibthnisamarthphisucnidwaepnkrniphiesskhxngthvsdibthkhxngscwt aela samarthphisucnidodyichewketxr dukdrupsiehliymdankhnan txipniepnkhxphisucnodyichkdkhxngokhisn 1 ihsamehliymmidan a b c displaystyle a b c odymiesnmthythan d displaystyle d lakipdan a displaystyle a ih m displaystyle m khuxkhwamyawswnkhxngdan a displaystyle a thithukaebngkhrungodyesnmthythan dngnn m displaystyle m khuxkhrunghnungkhxng a displaystyle a ihmumthiekidkhunrahwangdan a displaystyle a aelaesnmthythan d displaystyle d epn 8 displaystyle theta aela 8 displaystyle theta prime tamladb odythi 8 displaystyle theta xyuinfngthimidan b displaystyle b aela 8 displaystyle theta prime xyuinfngthimidan c displaystyle c dngnn 8 8 displaystyle theta theta mikhaethakb 180 xngsa aela cos 8 cos 8 displaystyle cos theta prime cos theta cakkdkhxngokhisncaidb 2 m 2 d 2 2 d m cos 8 displaystyle b 2 m 2 d 2 2dm cos theta c 2 m 2 d 2 2 d m cos 8 displaystyle c 2 m 2 d 2 2dm cos theta m 2 d 2 2 d m cos 8 displaystyle m 2 d 2 2dm cos theta nasxngsmkarmabwkkn caid b 2 c 2 2 m 2 d 2 displaystyle b 2 c 2 2 m 2 d 2 xangxing aekikh Godfrey Charles Siddons Arthur Warry 1908 Modern Geometry University Press p 20 ekhathungcak https th wikipedia org w index php title thvsdibthkhxngxaphxloleniys amp oldid 9522205, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,