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Mathematics
Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
A
B
=
A
C
AB = AC
A
B
=
A
C
. Point
D
D
D
is the midpoint of
B
C
BC
B
C
. Which congruence criterion can be used to prove
△
A
B
D
≅
△
A
C
D
\triangle ABD \cong \triangle ACD
△
A
B
D
≅
△
A
C
D
? a) SAS b) SSS c) RHS d) ASA
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