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Mathematics
Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
D
D
D
and
E
E
E
are the midpoints of
A
B
AB
A
B
and
A
C
AC
A
C
respectively. What is the length of
D
E
DE
D
E
in terms of
B
C
BC
B
C
? a)
B
C
BC
B
C
b)
2
3
B
C
\dfrac{2}{3}BC
3
2
B
C
c)
1
2
B
C
\dfrac{1}{2}BC
2
1
B
C
d)
1
3
B
C
\dfrac{1}{3}BC
3
1
B
C
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