If the polygons are similar, the corresponding sides are proportional.
corresponding sides:
AE - BD
AB - ED
BC - DC
AC - EC
You have proportions:
[tex]\dfrac{AE}{BD}=\dfrac{AC}{BC}=\dfrac{EC}{DC}\\\\\dfrac{AB}{ED}=\dfrac{BC}{DC}=\dfrac{AC}{EC}[/tex]
and their modifications
