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Byju's Answer
Standard IX
Mathematics
Basic Proportionality Theorem
In the adjace...
Question
In the adjacent figure
A
B
C
D
is a parallelogram
P
,
Q
are the midpoints of sides
A
B
and
D
C
respectively. Show that
P
B
C
Q
is also a parallelogram
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Solution
Since
A
B
∥
C
D
[ Opposite sides of
∥
g
m
are parallel ]
⇒
P
B
∥
Q
C
[ Parts of parallel lines are parallel ]
Also,
A
B
=
C
D
[ Opposite sides of
∥
g
m
are equal ]
⇒
1
2
A
B
=
1
2
C
D
⇒
P
B
=
Q
C
[ P is the mid point of Ab and Q is the mid point of DC ]
Since
P
B
∥
Q
C
and
P
B
=
Q
C
One pair of opposite sides of
P
B
C
Q
are equal and parallel.
∴
P
B
C
Q
is a
∥
g
m
.
Hence, the answer is solved.
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Similar questions
Q.
Given figure
ABCD
is a parallelogram,
P
and
Q
are midpoints of sides
AB
and
DC
respectively, then prove that
APCQ
is a parallelogram.
Q.
In the given figure,
□
ABCD is a parallelogram, P and Q are midpoints of side AB and DC respectively, then prove
□
APCQ is a parallelogram.