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
C. 84
12 x 8 is the area of the whole thing but you subtract 12 because of the missing 6x2 part of the square
May be answer 01
I cant understand the question