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siestarjoki 2 года назад
Светило науки - 2195 ответов - 9766 раз оказано помощи

S(AFG)/S(BFG) =AF/FB =3/1

S(AFG)=3k, S(BFG)=k, S(BAG)=4k, k=3645/3=1215

CD/DB *BG/GE *EA/AC =1 => 2/1 *BG/GE *3/5 =1 => BG/GE =5/6

S(BAG)/S(AEG) =BG/GE =5/6

S(AEG) =4k *6/5 =5832

BF/FA *AG/GD *DC/CB =1 => 1/3 *AG/GD *2/3 =1 => AG/GD =9/2

S(BAG)/S(BDG) =AG/GD =9/2

S(BDG) =4k *2/9 =1080

S(AEG)+S(BDG) =6912

или

S(AFG)/S(FBG) =AF/FB =3/1

S(AFG) =3k, S(FBG)=k, S(ABG)=4k

k=3645/3=1215

S(CEG)/S(AEG) =CE/EA =2/3

S(CEG)=2x, S(AEG)=3x, S(ACG)=5x

S(ABG)/S(ACG) =BD/DC =1/2 => 4k/5x =1/2 => x =8/5 k

S(AEG)=3x =3 *8/5 *1215 =5832

S(BDG)/S(DCG) =BD/DC =1/2

S(BDG)=y, S(DCG)=2y, S(BCG)=3y

S(BCG)/S(ABG) =CE/EA =2/3 => 3y/4k =2/3 => y =8/9 k

S(BDG)=y =8/9 *1215 =1080

S(AEG)+S(BDG) =6912

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