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Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
, points D and E are chosen on sides AB and AC respectively such that DE is parallel to BC. Prove that
△
A
D
E
\triangle ADE
△
A
D
E
is similar to
△
A
B
C
\triangle ABC
△
A
B
C
and state the similarity criterion applied.
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