Question

PLEASE HELP

Find the length of BC

Answer 1

Answer:

BC or n=72

Step-by-step explanation:

ABC≈DEF

$\frac{AB}{DE} =\frac{BC}{EF}=\frac{AC}{DF}=k$

$\frac{54}{9} =\frac{n}{12}$

$9n=54*12$

$9n=648$  (then divide both sides by 9.)

$n=72$