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
The probability of the door opening within three attempts is the answer. C
Answer:
Graph of Speed : where rule highway in major towns is now max 20,ph we can say the average speed is 12.
Step-by-step explanation:
average speed = f 1
f= beginning speed + final speed /2
average speed f2
f = 0 + 12 /2