Answer:
EF=6
Explanation:
The complete question is shown in the attachment.
Triangle AEF is similar to triangle ABC.
This means that, the corresponding sides are proportional.

From the diagram, EB=16-8=8
AB=16
AE=8
BC=12
We substitute the values into the formula to get:

Multiply both sides by 12 to get:


Therefore EF is 6 units