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Mathematics
Mathematics
Problem
In triangle
A
B
C
ABC
A
B
C
,
D
E
∥
B
C
DE \parallel BC
D
E
∥
B
C
with
D
D
D
on
A
B
AB
A
B
and
E
E
E
on
A
C
AC
A
C
. If
A
D
=
4
cm
AD = 4\,\text{cm}
A
D
=
4
cm
,
A
B
=
10
cm
AB = 10\,\text{cm}
A
B
=
10
cm
and
A
C
=
15
cm
AC = 15\,\text{cm}
A
C
=
15
cm
, calculate
A
E
AE
A
E
. a) 4 cm b) 9 cm c) 6 cm d) 8 cm
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