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Mathematics
Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
D
D
D
and
E
E
E
are midpoints of
A
B
AB
A
B
and
A
C
AC
A
C
respectively. If
B
C
=
10
cm
BC = 10\,\text{cm}
B
C
=
10
cm
, find the length of
D
E
DE
D
E
.
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