what is the length of EF?

The length of EF is 3.8
To do this, we make use of the following law of sines
EF/sin(D)= DE/sin(F)
So, we have:
EF/sin(75)= 3/sin(50)
This gives
EF = sin(75) * 3/sin(50)
Evaluate the product
EF = 3.8
Hence, the length of EF is 3.8
Read more about law of sines at:
https://brainly.com/question/4372174
#SPJ1