Help!
The first one is a little tricky
If ABC is similar to FDE...then
AB BC AC
__ = ___ = ___
FD DE FE
Notice that DE is 1/2 of BC
DE = 2
BC = 4
FE is 1/2 of AC
AC = 8
So....FE = 4
And note that (2,1) is 4 units from E
So (2,1) = F
and the second one? That first one was tricky.
We have these relationships
ΔABC similar to ΔBDC similar to ΔADB
Look at the first two triangles....note that....
AC BC
___ = ___
BC DC
So "B" is true
thanks so much!