Question

D and E are respectively the points on the sides AB and AC of triangle ABC such that AD=2cm, BD=4cm, BC=9cm and DE║BC. then ,find the length of DE?

Answer 1

Answer: 4.5 cm

Step-by-step explanation: attachment is below

Answer 2

Answer:

DE=4.5CM

Step-by-step explanation:

because DE is parallel to BC

then,

angle ADE=Angle ABc

angleAEC=angleAcB