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Given
Given
Alternate interior angles are congruent.
Vertical angles are congruent.
ASA
CPCTC
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?
?
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?
1.
FE
≅
FA
2. Line
l
and
h
are parallel.
3. ∠
DEF
≅ ∠
BAF
4. ∠
DFE
≅ ∠
BFA
5. Δ
DFE
≅ Δ
BFA
6.
DF
≅
BF