(Q11) In △ABC , DE||BC and
AD
DB
=
3
5
AC = 5.6 . Find AE .
A
B
C
D
E
In △ABC , DE||BC
AD
DB
=
AE
EC
but
AD
DB
=
3
5
so
AE
EC
=
3
5
Given AC =
and AE:EC = 3:5
AE
AC - AE
=
3
5
AE
- AE
=
3
5
5AE = (3×5.6) - 3AE
8AE =
AE =
=
cm
Clear