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2 Ȱ (3)

rank 𳪸 2018-12-09 () 16:02 ȸ : 607
 ̹


ûڰ ڽ 300Ʈ ɾϴ. 亯 äõǸ 150Ʈ 帳ϴ.
3 ۾
ranklemo 2018-12-09 () 17:00
8 5:4 ⼭ 1:2 Դϴ.

׷ P, Q, R ߽ ġ ﰢ 2/6 ġմϴ.

׷

8 * 4 : x = 4^2 : 6^2

x = 72
     
       
rank𳪸 ۾ 2018-12-09 () 17:29
˼ѵ ڼ Ź~
ذ ȵdz׿
          
            
ranklemo 2018-12-09 () 17:47
ﰢ OAB, OBC, OCA P, Q, R

8 5:4 ϵ

⼭ 1:2 ̱

1 + 1*(1/3) : 1*(2/3) = 4 : 2

Դϴ.

̴ ﰢԿ P, Q, R ϴ.

ﰢ PQR ̷ ﰢ ϴ ﰢ ̴ 8 * 4 ɴϴ.

׷ ̱

4^2 : (4+2)^2 = 4^2 : 6^2 = 8*4 : x

˴ϴ.

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