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Mathematics
Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
, points
S
S
S
and
T
T
T
are the midpoints of sides
P
Q
PQ
P
Q
and
P
R
PR
P
R
respectively. Explain why
S
T
ST
S
T
is parallel to
Q
R
QR
QR
.
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