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Standard VIII
Mathematics
Question
A
B
C
D
E
is a pentagon. A line through
B
parallel to
A
C
meets
D
C
produced at
F
.
a
r
(
A
E
D
F
)
=
40
c
m
2
, then area of pentagon
A
B
C
D
E
is
80
c
m
2
100
c
m
2
90
c
m
2
40
c
m
2
A
80
c
m
2
B
40
c
m
2
C
100
c
m
2
D
90
c
m
2
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