Question

If in given triangle ABC, DE || BC, AD = 4 cm, BD = 7 cm , AE = 2.4 cm, then find EC.​

Answer 1

Answer:

is given that, In ΔABC and DE∥BC.

We have to find AD=?

Since,

DB=7.2c.m.

AE=1.8c.m.

EC=5.4c.m.

So, We know that (using Thales Theorem)

DB

AD

=

CE

AE

Then,

7.2

AD

=

5.4

1.8

AD=

5.4

1.8×7.2

AD=

3

7.2