Angle BEC is the unmarked angle in the middle of the figure. Its value is the difference between straight angle AED (180°) and the two marked angles, 57° and 33°. That difference is ...
... 180° - 57° -33° = 90°
∠BEC is a right angle.
B. False
Not necceserly
It can be 10 10 and 160
Since it has to sum up to 180
Y-y
——-
X-x
21-9=12
5-(-1) =6
So the answer is D
Answer:
4
Step-by-step explanation:
Answer: 3,220
Step-by-step explanation: What you do first is find the volume of the room which is 1,610. So after that you multiply 1,610 by 2 since Maria wants "two" coats of paint on each wall.