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Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
and
△
S
Q
R
\triangle SQR
△
S
QR
, it is given that
P
Q
=
S
Q
PQ = SQ
P
Q
=
S
Q
,
Q
R
QR
QR
is common, and
∠
P
Q
R
=
∠
S
Q
R
\angle PQR = \angle SQR
∠
P
QR
=
∠
S
QR
. Are the two triangles congruent? Give a suitable reason for your answer.
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