
Let DF/FC=x/(1-x)
S(ADE)=4(x/(1-x))^2=(30+19)x^2
x=5/7
S(ADE)=49*25/49=25

Let DF/FC=x/(1-x)
S(ADE)=4(x/(1-x))^2=(30+19)x^2
x=5/7
S(ADE)=49*25/49=25
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