Answer:
Angle E is the included angle between sides DE and EF.
The included angle between sides FE and DF is angle F
Step-by-step explanation:
Given

Required
Complete the blanks
To solve this, I will attach an illustration of 
From the attached image of
, we can see that"
is between DE and EF
is between FE and DF
334.65 just multply 345*0.97
Answer:
i am not so sure but I think its 10x = 33