Question

find the value of x, if DE ia parallel to BC in a triangle ABC of sides AD =3cm , AE=2cm, EC=7cm and BD=x​

Answer 1

Answer:

x=10.5 cm

Step-by-step explanation:

AD=3cm

AE=2cm

EC=7cm

DB=x cm

Now according to the BPT theorem we can write-

AD/DB=AE/EC

3/x=2/7

21=2x

x=21/2

x=10.5cm