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Pertanyaan

Perhatikan gambar berikut ini Diketahui titik C merupakan titik tengah OB. Jika O A = p ​ , A B = q ​ , dan AC diperpanjang hingga D dengan AC : CD = 4 : 1, maka O D = ...

Perhatikan gambar berikut ini

Diketahui titik C merupakan titik tengah OB.

Jika , , dan AC diperpanjang hingga D dengan AC : CD = 4 : 1, maka

  1. begin mathsize 14px style 1 half open parentheses 3 p with rightwards arrow on top minus 5 q with rightwards arrow on top close parentheses end style

  2. begin mathsize 14px style 1 half open parentheses 5 p with rightwards arrow on top minus 3 q with rightwards arrow on top close parentheses end style

  3. begin mathsize 14px style 1 half open parentheses 3 p with rightwards arrow on top plus 5 q with rightwards arrow on top close parentheses end style

  4. begin mathsize 14px style 1 over 8 open parentheses 5 p with rightwards arrow on top plus 3 q with rightwards arrow on top close parentheses end style

  5. begin mathsize 14px style 1 over 8 open parentheses 3 p with rightwards arrow on top plus 5 q with rightwards arrow on top close parentheses end style 

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Jawaban terverifikasi

Pembahasan

Perhatikan bahwa Karena C berada di pertengahan OB, maka Kemudian A, C, dan D terletak segaris. Karena AC : CD = 4 : 1, maka

Perhatikan bahwa

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell stack O B with rightwards arrow on top end cell equals cell stack O A with rightwards arrow on top plus stack A B with rightwards arrow on top end cell row blank equals cell p with rightwards arrow on top plus q with rightwards arrow on top end cell end table end style

Karena C berada di pertengahan OB, maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell stack O C with rightwards arrow on top end cell equals cell 1 half stack O B with rightwards arrow on top end cell row blank equals cell 1 half open parentheses p with rightwards arrow on top plus q with rightwards arrow on top close parentheses end cell end table end style

Kemudian A, C, dan D terletak segaris. Karena AC : CD = 4 : 1, maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell stack O C with rightwards arrow on top end cell equals cell fraction numerator 4 stack O D with rightwards arrow on top plus stack O A with rightwards arrow on top over denominator 4 plus 1 end fraction end cell row cell 1 half open parentheses p with rightwards arrow on top plus q with rightwards arrow on top close parentheses end cell equals cell fraction numerator 4 stack O D with rightwards arrow on top plus p with rightwards arrow on top over denominator 5 end fraction end cell row cell 5 over 2 open parentheses p with rightwards arrow on top plus q with rightwards arrow on top close parentheses end cell equals cell 4 stack O D with rightwards arrow on top plus p with rightwards arrow on top end cell row cell 5 over 2 p with rightwards arrow on top plus 5 over 2 q with rightwards arrow on top end cell equals cell 4 stack O D with rightwards arrow on top plus p with rightwards arrow on top end cell row cell 5 over 2 p with rightwards arrow on top plus 5 over 2 q with rightwards arrow on top minus p with rightwards arrow on top end cell equals cell 4 stack O D with rightwards arrow on top end cell row cell 3 over 2 p with rightwards arrow on top plus 5 over 2 q with rightwards arrow on top end cell equals cell 4 stack O D with rightwards arrow on top end cell row cell 1 half open parentheses 3 p with rightwards arrow on top plus 5 q with rightwards arrow on top close parentheses end cell equals cell 4 stack O D with rightwards arrow on top end cell row cell stack O D with rightwards arrow on top end cell equals cell 1 fourth times 1 half open parentheses 3 p with rightwards arrow on top plus 5 q with rightwards arrow on top close parentheses end cell row cell stack O D with rightwards arrow on top end cell equals cell 1 over 8 open parentheses 3 p with rightwards arrow on top plus 5 q with rightwards arrow on top close parentheses end cell end table end style

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Perhatikan gambar berikut ini Diketahui bahwa O A = 3 p ​ , A B = 2 p ​ , OC = 2 q ​ , dan C D = 3 q ​ . Titik E merupakan titik potong AD dan BC sedemikian sehingga AE : ED = 1 : m dan BE : EC ...

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