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Perhatikansegitiga ABC di samping AB : AC : BC 5 : AC : BC ​ = = ​ 1 : 3 ​ : ... 1 : 3 ​ : ... ​ a. menentukan panjang sisi AC AB : AC 5 : AC ​ = = ​ 1 : ... 1 : ... ⇔ AC ⋅ 1 = 5 ⋅ ... ⇒ AC = ... ​

Perhatikan segitiga ABC di samping

 

a. menentukan panjang sisi AC 

 

 

 

  1. ... 

  2. ... 

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panjang sisi AC adalah

panjang sisi AC adalah begin mathsize 14px style 5 square root of 3 space cm end style 

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Berdasarkan gambar, maka Sehingga panjang sisi AC adalah Jadi panjang sisi AC adalah

Berdasarkan gambar, maka 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row blank blank AB end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank AC end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank BC end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 1 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 3 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 2 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 5 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank AC end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank BC end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 1 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 3 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank colon end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 2 end table end style 

Sehingga panjang sisi AC adalah 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell AB space colon space AC end cell equals cell 1 space colon space square root of 3 space end cell row cell 5 space colon space AC end cell equals cell 1 space colon space square root of 3 left right double arrow AC times 1 equals 5 times square root of 3 space rightwards double arrow AC equals 5 square root of 3 end cell end table end style 

Jadi panjang sisi AC adalah begin mathsize 14px style 5 square root of 3 space cm end style 

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