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Mathematics
Mathematics
Problem
In parallelogram
A
B
C
D
ABCD
A
B
C
D
, points
P
,
Q
,
R
P, Q, R
P
,
Q
,
R
and
S
S
S
are the midpoints of sides
A
B
,
B
C
,
C
D
AB, BC, CD
A
B
,
B
C
,
C
D
and
D
A
DA
D
A
respectively. Prove that
P
Q
R
S
PQRS
P
QR
S
is a parallelogram.
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