CE In ABC
EB. Complete the proof showing that DE is parallel to AC.
B
E
с
Reason
Statement
AD CE
1 DB ЕВ
强
given
2.
AD + DB
DB
CE + EB
ЕВ
using common denominators
. 4.
segment addition
AB = AD + DB
CB СЕ + ЕВ
5.
5. AB = CB
Substitution Property of Equality

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