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yes
Step-by-step explanation:
QR = SD
(opposite sides of a parallelogram)
DQ = RS
(opposite sides of a parallelogram)
SQ = QS
(common side)
hence triangle SQD is congruent to triangle QSR
(BY SSS CONGRUENCE)
OR
angle RQS = angle DSQ
(alt. int. angles)
angle QSR = angle SQD
(alt. int. angles)
SQ = QS
(common side)
hence triangle SQD is congruent to triangle QSR
(BY ASA CONGRUENCE)
OR
angle QRS = angle SDQ
(opposite angles of parallelogram)
DQ = RS
(opposite sides of a parallelogram)
SQ = QS
(opposite sides of a parallelogram)
hence triangle SQD is congruent to triangle QSR
(BY SAS CONGRUENCE)
here's your answer
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