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Mathematics
Mathematics
Problem
If
S
S
S
is the mid-point of side
Q
R
QR
QR
of a
△
P
Q
R
\triangle PQR
△
P
QR
, then prove that
P
Q
+
P
R
=
2
P
S
\mathbf{PQ} + \mathbf{PR} = 2\mathbf{PS}
PQ
+
PR
=
2
PS
.
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