Question

n ABC, DE || AB. If CD = 3 cm, EC = 4 cm, BE = 6 cm, then DA is equal to
(a) 7.5 cm
(b) 3 cm
(c) 4.5 cm
(d) 6 cm

please answer with explanation .

Answer 1

Answer:

d) 6 cm okkkkkkkkkkkkkkkkkkkkkkkkkk

Answer 2

the answer is : 4.5 cm

Given: AB=3cm, BC=2cm and CA=2.5cm and EF=4cm 

Also, △ABC∼△DEF

Thus, DEAB=EFBC=DFAC

DE3=42=DF2.5

Hence, DE=6cm and DF=5cm

Perimeter of Δ DEF = DE+EF+EF

Perimeter of Δ DEF = 4+5+6

Perimeter of Δ DEF = 4.5 cm