Question

In a triangle ABC, DE ∥ BC and AE = a, EC = b, Find the value of de/bc

plsssss help

Answer 1

Answer:

Let AE be x cm.

Then, EC=18−x cm

Since,

DB

AD

=

EC

AE

Therefore,

3

2

=

18−x

x

36−2x=3x

5x=36

x=7.2 cm