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Mathematics
Problem
In parallelogram
W
X
Y
Z
WXYZ
W
X
Y
Z
,
W
Z
=
18
cm
WZ = 18\,\text{cm}
W
Z
=
18
cm
. Point
P
P
P
is the midpoint of
W
X
WX
W
X
and point
Q
Q
Q
is the midpoint of
W
Y
WY
W
Y
. Find the length of
P
Q
PQ
P
Q
.
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