AE=EF=FB
CG=GH=HD
A) AE/EF=1
B) AE/EB=AE/(EF+FB)=1/2
C) EF/AB=EF/(3×EF)=1/3
D) CH/HG=(CG+HG)/HG=2/1=2
E) DG/CG=2/1=2
F) DC/GH=3/1=3