Question

If ΔABC ~ ΔDEF, AB = 4 cm, DE = 6 cm, EF = 9 cm and FD = 12 cm, find the perimeter of ∆ABC.​

Answer 1

Answer:

18cm

Step-by-step explanation:

AB:BC:AC::DE:EF:FD

4:BC:AC::2:3:4

4/BC=2/3

BC=6

BC/AC=3/4

6/AC=3/4

AC=8

Perimeter =AB+BC+AC

=4+6+8

=18cm