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kalo yang sudut A=C=E=G=80
B=D=F=H= 180-80=100
Soal : Sisi : AB/EF = 8:4=2:1
BC/FG =5:2,5=2:1
CD/GH =8:4=2:1
AD/EH = 5:2,5=2:1
Isilah besar sudut masing2!
Soal: <A =80'
<B =100'
<C =80'
<D =100'
<E =80'
<F =100'
<G =80'
<H =100'