<BAC = <DEC = 30°
<BCA = <DCE = 70°
<CDE (or m<D) = 180° - <DEC - <DCE
<CDE = 180° - 30° - 70°
<CDE = 80°
The number that belongs in the green box is 80
 
        
             
        
        
        
Answer:
angle 2
Step-by-step explanation:
they aren't equal. 
 
        
                    
             
        
        
        
Answer:
270°
Step-by-step explanation:
(0, -1) is at the 270° angle.  If you do a 360°, you end up back where you started, so the angle is still 270°.